Health

Heart-Healthy Foods: A Delicious Diet can Lower Cholesterol

Friday, August 27th, 2010

Last week my husband ended up in a cardiac intensive care unit. Turned out he had 90% blockage in a coronary artery and needed an emergency angioplasty.  How could this have happened to a fit, healthy eater who exercises regularly?  Well, he is over 50 and there is a history of heart disease in his family. This unexpected scare drove home to me the need to eat plenty of heart-healthy foods that will help keep our cholesterol in the excellent range and reduce our risk of heart disease.

Most of us know that cholesterol in our blood can build up in our arteries and that we want to keep levels of “bad” cholesterol, or low-density lipoproteins (LDL), below 100 mg/dl in our bloodstream, and increase our levels of “good” cholesterol, or high-density lipoproteins (HDL) to over 60 mg/dl, according to the Mayo Clinic.  There are drugs, such as statins, that can do this for you, but the best way is through a healthy diet. A study in the July 2003 issue of the Journal of the American Medical Association compared a whole foods diet with treatment by statin drugs, and found the whole foods approach to be just as effective.

So, what are these foods that can lower LDL and raise HDL?  Aside from omega-3-rich cold-water fish like salmon, they are all in the plant kingdom. (See The Skinny on Fatty Acids for why omega-3s are good for you.)  Oatmeal, nuts, berries, avocados, beans, and olive oil are some of the important foods to include in a heart-healthy diet.  Their benefits come from soluble fiber, antioxidants, and oleic acid.

fruit deliverySoluble Fiber

Soluble fiber actually reduces LDL in the blood as much as 20-30%, and can be found in oatmeal and barley; beans; nuts; peas; flax seeds; fruits, including apples, citrus fruits, bananas and strawberries; vegetables such as broccoli and carrots; and psyllium husk.  The soluble fiber in these foods decreases the absorption of cholesterol by binding to cholesterol-containing bile, which our bodies then excrete rather than reabsorb. Then the body needs to remove additional LDL from the blood to create new bile, which is essential for digestion, thereby reinforcing the LDL-reduction cycle.

Antioxidants: Niacin (Vitamin B3), Vitamin C, Vitamin E, Beta-carotene

All potent antioxidants, these nutrients stop LDL cholesterol from causing atherosclerosis, or the build-up of cholesterol in the form of plaque in the arteries. LDL particles appear to be harmless until they are oxidized by free radicals. Antioxidants prevent oxidation. Studies show niacin can decrease cholesterol levels by 10-26% and to decrease heart attack recurrence by 29%.  Niacin can even raise the levels of good HDL in the blood. Great sources of niacin include asparagus and crimini mushrooms, in addition to fish like salmon, halibut and tuna, plus chicken, turkey and venison.  Foods high in vitamin C include papaya (the highest food source), citrus fruits, broccoli, red bell peppers, strawberries, kale, Brussels sprouts, and kiwifruit, among many others. Vitamin E can be had from leafy greens such as Swiss chard, spinach, and kale; almonds, walnuts, and sunflower seeds.  For beta-carotene, turn to orange foods such as carrots, sweet potatoes, and winter squash, or kale.

Oleic Acid

Oleic acid and other monounsaturated fats also decrease the oxidation of LDL cholesterol and help reduce overall cholesterol levels.  The particularly high levels of oleic acid in extra-virgin olive oil explain why the “Mediterranean diet” protects against heart disease.  Other good sources of monounsaturated fats are avocados, almonds, cashews, peanuts, sesame seeds, pumpkin seeds, and walnuts.  People who replace saturated fats in their diet with monounsaturated fats see a 13% reduction in total cholesterol levels and an 18% reduction of LDL cholesterol. Some olive oil labeling can be misleading, so look for cold-pressed, unfiltered, extra-virgin olive oil. It should look cloudy and be in a dark bottle.

A heart-healthy diet can be delicious as well as good for you. How about a salad with tuna, avocado, red bell pepper, and extra virgin olive oil? There are many foods that can help keep cholesterol in check and benefit the heart, including yummy dark chocolate. The World’s Healthiest Foods is a great resource for summaries of research on cholesterol and recipes of hearty healthy foods. It’s never too late to help lower your risk of heart disease by improving your diet. Your heart—and your family—will thank you.

- Rebecca Taggart

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Calcium: A Bone’s Best Friend – Needs Change as We Age

Wednesday, August 11th, 2010

Calcium and phosphorus are critical minerals that form the basic building block of bones and teeth, giving them both strength and density.  Calcium is also critical to nerve and muscle function, blood clotting, enzyme and hormone regulation, and cell membrane function.  When we don’t consume adequate amounts of calcium through food or supplements, our bodies take what is needed from our bones, which over time can lead to osteoporosis.

dairy sourcesOsteoporosis, characterized by porous and fragile bones, will affect half of all American women according to the National Institutes of Health. Less well known is that one in four men over age 50 will have an osteoporosis-related fracture in their lifetime. Inadequate calcium intake in childhood and/or adulthood is usually a critical contributing factor to osteoporosis.  Research shows that getting enough calcium helps prevent breast and colorectal cancer, high blood pressure, and obesity.

Our calcium needs change over our lifetimes as the rate of bone growth changes. Babies and children need sufficient calcium to grow normally, yet we need the most calcium during the pre-adolescent and teenage years, when bones grow tremendously in length. The teenage years represent a once-in-a-lifetime chance to build bones. By age 18 we have already built most of the skeleton that will support us the rest of our lives.

Calcium needs by age according to the NIH:

  • Children ages 4 to 9, at least 800 mg of calcium per day
  • Girls age 10-18 and boys 12-18, 1,300 mg
  • Adults ages 19-50, 1,000 mg
  • Adults age 50+ need at least 1,200 mg

So is it all over for those of us over 18?  Not at all.  We continue to add density to our bones up until about age 30-35, assuming we consume at least 1000 mg of calcium daily.  After age 35 we begin to lose bone density.  Nonetheless keeping our blood calcium levels up by ingesting at least 1,000 mg daily after age 35 keeps our bodies from robbing our bones to supply the many essential functions that need calcium, and thus slows bone loss.  After age 50, our needs increase again to at least 1,200 mg, partly because as we age we produce less stomach acid, which is necessary for calcium absorption.  Post-menopausal women are especially at risk because lower estrogen levels mean bones loose calcium more quickly.

Most Americans consume less than adequate amounts of calcium. So where can you get the calcium you need?  In general, calcium is better absorbed from food sources than from supplements.  There are trace amounts of calcium in most foods but here are some with higher amounts:

  • Low-fat yogurt, one cup, about 415mg calcium
  • Milk, one cup, about 300mg
  • Cheddar cheese, one ounce, about 200mg
  • Ricotta cheese, one cup, about 509mg
  • Spinach, one cup cooked, 245mg
  • Collard or turnip greens, one cup cooked, about 200mg
  • Swiss chard or mustard greens, about 100mg
  • Broccoli, half cup cooked, 35mg
  • Black-eyed peas, one cup cooked, 211mg
  • Sardines, small can with the bones (3.5 oz), 325mg
  • Baking powder, 1 teaspoon, 200-300mg

Surprisingly, two teaspoons of blackstrap molasses provide 12% RDV and 1/4 cup sesame seeds yields about 35%.

Supplements are another way to give our body additional calcium but remember that our bodies have trouble absorbing more than 500 mg at a time, so tablets with more than this amount may deliver diminished results.  Chelated calcium, such as calcium citrate, is more readily absorbed than calcium carbonate, the cheaper form usually found in fortified juices, antacid tablets, and many calcium supplements.  If your supplement contains calcium carbonate, take it with a meal to help improve absorption.  Vitamin D improves the absorption of all forms of calcium, so supplements that combine both calcium and Vitamin D are best.  Magnesium is also important for bones, but interferes with calcium absorption, so avoid supplements that combine these nutrients.  Calcium interferes with iron absorption, so again avoid supplements that combine the two. MIT provides detailed information on essential minerals here.

In addition to calcium, bones require exercise to encourage calcium absorption.  Walking, running, weight-resistant workouts, and anything where the feet leave the ground all help increase bone density, especially in adolescence and early adulthood.  If you have children, especially girls, encourage a calcium-rich diet with plenty of exercise to develop strong bones and help prevent osteoporosis after menopause.

- Rebecca Taggart

Information in this article is not intended for medical advice. Always consult your doctor or health professional before beginning a new exercise program or introducing new supplements.

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Hike Your Way to Health: Hiking Adapts to Any Fitness Level

Tuesday, July 27th, 2010

Hiking is much more than exercise—it can be a communion with nature, and often a meditation on self and one’s place in the world. So why not do more of it? Many of us may feel that hiking opportunities are far away and a bit complicated to organize, especially for urban dwellers. A long car trip just for a day hike may sap the will before you even tie your shoes.

hikerYet there are a remarkable number of hiking areas near urban areas, and not just in California. Localhikes.com has listings of hikes near metropolitan areas across the U.S., including New York, Chicago, Philadelphia, Washington, D.C., Los Angeles, and the San Francisco Bay Area.

Day hiking does not require specialized equipment: comfortable shoes and a backpack with water, lunch, and possibly a map and a cell phone is often all you need. I often hike in my Teva sandals and rarely use hiking boots unless backpacking, but if you don’t know the terrain you will encounter, always wear sturdy shoes and long pants to protect against contact with poison oak or ivy. A camera and/or binoculars can be nice to have along. For remote areas or long hikes during uncertain weather, the American Hiking Society recommends bringing the Ten Essentials of Hiking, including rain gear, matches, a whistle, and extra food and water. If you hike solo, it’s a good idea to tell someone where you are going and when you expect to be back, just in case of an injury on the trail.

Hiking is good exercise and burns around 230-500 calories per hour at a moderate pace of 20 minutes per mile, depending on the trail. Walking on level ground gives the lower estimate for a 150-lb individual, while the higher figure is for climbing steep slopes. It is a good cardiovascular activity and both tones and strengthens the legs.

Yet exercise is only one reason to hike. Being in nature is what makes hiking a different kind of exercise, and the slower pace of foot travel for those of us used to moving in cars, airplanes, and on bicycles. Hiking is a chance to get away, even if it is just within a large urban park. It offers the excitement of reaching places that are otherwise inaccessible. Hiking with a “goal,” i.e. to reach a waterfall, lake, or summit, encourages both children and adults to keep going when they might otherwise want to quit.

One of the biggest benefits of hiking is the sense of peace it brings. Being out in nature tends to calm us and relieve the stress of daily life. At first you may find yourself thinking about work or relationships, but if you focus on what is around you those thoughts will eventually slip away. Hearing the wind in the trees, birds singing, or the sound of a creek takes us outside of ourselves. Think of hiking as a shortcut to meditation and a general sense of wellbeing. As naturalist John Muir so elegantly said, “Everybody needs beauty as well as bread, places to play in and pray in, where nature may heal and give strength to body and soul.”

- Rebecca Taggart

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Stay Cool When it’s Hot: Heat related illness soars with the temperature

Tuesday, July 13th, 2010

heatAs New York and the East Coast cool down a bit from a record heat wave, everyone is ready for a break.  But summer is here for awhile so you may still be at risk for heat-related illnesses such as heat rash, heat cramps, heat exhaustion, and, most seriously, heatstroke. Why is heat such a problem for our bodies? And what’s the best way to handle very hot weather?

When the air temperature rises, your body starts to warm up as well. To maintain an internal temperature of 98.6˚F (37˚C), the body pumps more blood to the skin and sweats, both of which helps cool it down. But when temperatures stay very hot, your body absorbs more heat than it can lose and its internal temperature begins to rise. A rise in body temperature of more than 1˚C (about 2˚F) leads to heat illnesses, including heat edema, rashes, cramps, heat exhaustion, and eventually heat stroke and hyperthermia, which require immediate medical attention.

heatwaveSustained high temperatures are especially dangerous for children under four, the elderly, those with chronic disease and mental illness, and the overweight, whose bodies are less efficient at cooling. At 95˚ to 104˚F we exceed our heat tolerance limit and our body temperature rises.  High humidity makes sweating less effective, even if you are drinking plenty of fluids.  Men are slightly more at risk of dehydration than similar-sized women because they sweat more, although generally women are somewhat less heat tolerant than men.

Americans’ busy lifestyles leave little room for coping with heat the way people do in other countries where very high temperatures are common.  We want to work and exercise the way we usually do, instead of slowing down during the hottest part of the day and taking a siesta.  Air conditioning is critical for people at risk, but allows those of us who are healthy to keep pushing ourselves.

Safety Tips: If you want to exercise or work outdoors, do so in the early morning, then stay out of the sun later in the day, as sunshine raises the body’s temperature quickly.  Avoid drinks with either alcohol or caffeine, which dehydrate the body, and eat smaller, meatless meals to keep digestion from raising your internal temperature.  Drink plenty of water and drinks with electrolytes to replace essential salts lost during sweating. Never leave children or animals in a parked car—even for  a minute.

Signs of heatstroke: call 911 or seek immediate medical attention if you suspect you or someone else is in danger of heatstroke. Get victim to cool shady area and cool with water while waiting. The Centers for Disease Control lists these as some of the signs of heatstroke, see their website for more information:

  • Fainting or dizziness
  • Body temperature over 103˚
  • Behavior: mental confusion, grouchy, staggering, delirium
  • Lack of sweating despite the heat
  • Throbbing headache
  • Nausea

When the heat turns up, it’s time to slow down. The heat wave won’t burn you if you cool it – kick back in the shade and take a sip from that glass of water.  Mother nature is demanding a time-out.

- Rebecca Taggart

The information in this article is not intended as a medical diagnosis or advice.

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Why Mother was right: Broccoli and other cruciferous veggies really are good for you

Tuesday, June 29th, 2010

“I do not like broccoli. And I haven’t liked it since I was a little kid and my mother made me eat it. And I’m President of the United States and I’m not going to eat any more broccoli.”
– George H.W. Bush, 41st U.S. President

broccoli

The first President Bush may not have been fond of his broccoli, but there are many reasons why you should be. High in Vitamins C, K and A, folate, soluble fiber and the omega-3 ALA, broccoli has proven cardiovascular benefits and is a great choice for healthy eating. Yet what sets broccoli and other cruciferous vegetables above and beyond are the glucosinolate compounds they contain, which have potent anti-cancer effects.

Cruciferous vegetables belong to the mustard family, and include cauliflower, cabbage, kale, Brussels sprouts, and bok choi, among others. When overcooked, they all produce an unappetizing odor due to their glucosinolate content. These glucosinolates give cruciferous plants their bitter/sharp taste, and in high doses are toxic to humans and animals, therefore providing protection for the plants.

Many animal studies have shown that glucosinolates, when consumed in less-than-toxic amounts, produce substances in the body that inhibit cancer. These isothiocyanates, which include sulforaphane, indole-3-carbinol, and crambene, both stop enzymes from activating cancer-causing agents in the body, and increase the activity of enzymes that disable and eliminate carcinogens. In other words, these substances derived from eating cruciferous vegetables both inhibit the growth of, and slow the spread of, cancers.

Studies show a strong correlation between human and animal diets high in cruciferous vegetables and lower cancer rates. People who eat the most cruciferous vegetables have lower risks of prostate, colon, breast, ovarian, bladder, and lung cancer, even when compared to those who regularly eat other vegetables. In the case of prostate cancer, it appears that eating broccoli together with tomatoes is even more effective against tumors.

It is important to pay attention to how you select and cook your cruciferous vegetables in order to maximize their nutritional value, including anti-cancer benefits. Look for dark green heads on broccoli — yellowing indicates it is past mature. Cauliflower should be firm, compact, and creamy white, without any spotting. Brussels sprouts as well as cabbage needs to be firm and without yellow or brown discoloration on the leaves. Leafy greens such as kale should be firm and dark green.

When it comes to cooking, both old-fashioned boiling and new-fangled microwaving are definitely out. Both sharply reduce the nutrient content. Steaming is the best bet and shows little nutrient loss when kept to 5 minutes. Quickly sautéing with extra virgin olive oil is another good choice. Remember that overcooking causes those wonderful glucosinolates to be released and bother your nose rather than protect you from cancer. Season with lemon juice and sea salt, or add to pasta, salad, or pizza.

So, has President Bush changed his mind yet? Maybe his mom simply overcooked his broccoli…

- Rebecca Taggart

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Yoga for Travelers: Simple Poses to Combat Jetlag

Tuesday, June 15th, 2010

Vacations are great, but the travel can be hard on your body. Yoga To Beat Jetlag described the benefits of the pose viparita karani (Legs up the Wall) after a long airline flight or car trip. In this follow-up, you’ll learn a set of four poses to refresh your body and help reset your internal clock after a long trip.

downward dog1) Downward Facing Dog
Begin with adhomukha svanasana (Downward Facing Dog) pose . Place your hands on the seat of a chair whose back is against a wall (for stability). Step back until your feet are farther from your hands than your hips. Straighten your legs completely as you draw your side body and shoulder blades toward your buttocks. Hold for 30 seconds, then step forward and come up. If you are stiff, repeat with the chair. If you are more flexible, repeat with your hands on the floor, pressing the hands firmly down and extending your spine back towards the legs. Raise the heels as necessary to straighten the legs. Hold for 30 seconds and walk feet in and come up.

This pose helps to calm the brain and gently stimulate the nervous system, in addition to stretching the back and legs. It also helps relieve headaches, rests and rejuvenates the heart, and boosts circulation, which will help relieve swollen legs and ankles after long flights.

2) Spinal Twist
After lengthening your back, you are ready for marichyasana (Sage Spinal Twist.) Sit on a folded blanket or pillows with your legs straight. Bend your right knee and bring your heel close to your buttock. Place your elbow on the outside of your knee. Inhale and sit tall, then on your exhalation twist towards your right. Avoid turning your head at first and concentrate on turning from your pelvis and abdomen. Roll both shoulders back. Hold 30 seconds breathing normally, then release on an exhalation and repeat to the left.

This spinal twist relieves lower backache and hip tightness. It aids sluggish digestion, which is common after flying, and increases circulation to the internal abdominal organs. The pose alleviates indigestion, and helps prevent or relieve sciatica.

supta3) Reclining Bound Angle
Supta baddha konasana (Reclining Bound Angle) is a restorative pose to help you open your chest, abdomen, and pelvic area. Use a folded blanket (or two) or stacked pillows to place under your back. Place a folded towel above them to support your head. Sitting, place the place the soles of your feet together, then lie back on the blankets, relaxing your knees open. If you feel a strong stretch at the groin, place rolled towels or pillows under your knees. Rest your hands at your sides, palms up to the ceiling. Close your eyes and relax, concentrating on the rhythm of your breath. Remain in the pose for at least 3-5 minutes, longer if you are comfortable.

Bound Angle pose helps the body oxygenate by opening the lungs and encouraging deeper breathing. It regulates blood pressure and increases circulation in the abdominal area, relieving any digestion woes. The pose is calming, and conducive to meditation.

yoga4) Legs up the Wall
End your anti-jetlag yoga practice with viparita karani (Legs up the Wall.)

Be sure to drink plenty of fluids to help you rehydrate and spend time in the sun to encourage your inner clock to reset. Refreshed, you are ready to enjoy your vacation!

- Rebecca Taggart

Rebecca Taggart is a San Francisco-based yoga instructor.

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Summer Sun: The Good, the Bad, the SPF

Monday, May 31st, 2010

sun protectionLong, warm, sunny days are the hallmark of summer, when the sun’s warmth drives off all memory of winter. Summer is about spending time outside, whether at the beach with a book, working in the garden, or just eating lunch on a park bench. Exposure to sun makes us feel good and makes our bodies produce needed Vitamin D. Unfortunately, we also know that sunshine can damage our skin. So just what is the lowdown on sunshine and the sunscreens we use to protect ourselves?

Most of the skin changes on our face and hands that we associate with aging come from exposure to UVA and UVB waves in sunlight or from tanning booths. Age spots, wrinkles (other than creases from facial expressions), mottled pigmentation, telangiectasias (enlargement of blood vessels under the skin), as well as many tumors arise from sunbathing, whether intentional or not. Sun damage is often not apparent when we are young, but it is there nonetheless. Eventually the UV rays cause enough damage to our elastin skin fibers that the skin begins to stretch permanently rather than springing back into place, leading to sagging and wrinkles. UVA and UVB waves penetrate skin cells and cause changes in the cells’ DNA, which can lead to skin cancer. Sunburns in particular raise the risk of melanoma, the most dangerous type of skin cancer.

So, are we off the hook if we use sunscreens? They certainly help, but we would have to live in the dark to avoid all damage. And using just any sunscreen won’t do the trick. It is important to use a broad-spectrum sunscreen, meaning it protects from UVA and UVB rays. Look for at least one of the following ingredients for significant UVA protection: avobenzone, ecamsule (Mexoryl), titanium dioxide, or zinc oxide. Remember that glass does not block UVA radiation, so it is important to use a sunscreen even when driving in the car with the windows up, or sitting near a window.

The Sun Protection Factor (SPF) rating refers to a sunscreen’s ability to block UVB radiation. The National Institute of Health (NIH) recommends using at least SPF 15, while the American Academy of Dermatology (AAD)  recommends using a broad-spectrum sunscreen with an SPF of at least 30 on a daily basis throughout the year, even on cloudy days. Don’t be fooled into thinking the SPF is how much longer you can stay in the sun, which also depends on the time of day, altitude, season, and distance from the equator.

Both the NIH and the AAD recommend avoiding exposure when the sun is strongest (10 am to 4 pm in the summer or whenever your shadow is shorter than you are). They also suggest wearing sunglasses with UV protection plus protective clothing and a hat. Reapply sunscreen every two hours and after getting wet or toweling off. No sunscreen is actually waterproof, but the ones that claim they are last between 40 to 80 minutes. Always reapply when you get out of the water. Remember that sunscreen’s effectiveness lasts about three years, so recycle the old containers.

At this point it feels like much of the fun has been drained out of summer, but in reality, everything we do involves balancing risks. Many of us will still find ourselves by a pool or on a beach this summer, and we can reduce the risk of damage by using sunscreen and being sensible about our exposure.

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Yoga to Beat Jetlag

Tuesday, May 18th, 2010

As the busy summer travel season approaches, many of us will find ourselves on planes. The journey may be long or short, but the effects on the body are similar: airline flight slows the body’s metabolism dramatically, makes digestion sluggish, and can cause legs to swell due to decreased blood circulation. The recycled air, cramped space, and time change, if any, contribute to both mental and physical fatigue.

cramped airplane travelMost airline magazines now carry a section on in-flight stretches and exercises to make you feel a bit better while tethered to your seat, but equally important is what you do after the flight lands. Once you reach your destination, try the following yoga pose to restore your sense of wellbeing, return your body to its pre-flight state, and help you adjust to any jetlag.

Viparita Karani, also known as “legs up the wall,” is a fabulous pose for relieving fatigue and stress, and has special benefits for bodies after flying. This simple supported position helps to rejuvenate your legs by supporting them in an inverted position, while your chest is gently opened in a supported backbend (see image). Viparita karani relieves fatigue, ankle and leg swelling, lower back stiffness, aids digestion, and nourishes the heart while calming the nervous system. What better landing position?

legs up the wall yoga poseThe pose: Remove your shoes. Find some pillows or blankets to support your lower back. The height should be sufficient to elevate your torso so that your shoulders just rest on the ground and your chest opens comfortably. Position yourself on the floor with your legs up the wall with your buttocks in the space between the support under your lower back and the wall. Rest your arms, palms up, at your side. If you are stiff and feel uncomfortable, move your support farther away from the wall so just your heels rest on the wall and your thighs are less than perpendicular to the floor.

Once in position relax completely. Close your eyes and focus on your breath. Release any remaining tension from your travels as you remain in the pose 15 minutes, or as long as is comfortable for your body. Come out of the pose slowly by bending your knees and then rolling to the side. Follow with a few minutes lying flat on the floor, with a pillow or blanket under your head. Then enjoy your vacation!

- Rebecca Taggart

Rebecca Taggart is a San Francisco yoga instructor.

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Why You Need More Omega-3s

Wednesday, May 5th, 2010

Lots of packaged foods now promote their omega-3 content, as interest in the essential fatty acid has made it the latest hot nutrient but less commonly understood is the importance of the ratio of omega-3 to omega-6 consumption for overall health.

omega 3 supplements

It appears that humans used to consume roughly equal amounts of omega-3s and omega-6s (a 1:1 ratio) before the advent of processed foods, but western diets now have a ratio closer to 1:15. Omega-3s are anti-inflammatory, whereas omega-6s are primarily inflammatory. (See “The Skinny of Fatty Acids.”) When balanced, these substances ensure our immune system functions optimally. Since our bodies cannot produce essential fatty acids, we have to obtain them from our diet. There are few sources of omega-3s besides the flesh of coldwater fish such as salmon, mackerel, and sardines. Omega-6s are abundant in refined vegetable oils, such as soy oil, and omnipresent in processed foods in part because of their long shelf life. Diets high in omega-6s can cause inflammation that can lead to diseases such as asthma, coronary heart disease, forms of cancer, plus autoimmune, and neurodegenerative diseases. The imbalance between omega-3 and omega-6 fatty acids may also contribute to obesity, depression, dyslexia, hyperactivity, and even a tendency toward violence, according to Dr. Andrew Weil.

So how did this imbalance arise? Omega-3s are produced by leaves and algae (fish get theirs from eating algae-consuming creatures). Omega-6s come from seeds. During the past century, both human and farm animal diets have shifted away from leaves and become more dependent on seeds. For example, corn oil has an omega-6 to omega-3 ratio of 46 to 1, whereas canola and olive oils are 3 to 1. Omega-3 fats spoil much more readily than omega-6, thus the scarcity of olive and canola oils in junk food. Partially hydrogenating fats increases their stability, but eliminates any omega-3 fatty acids. As livestock diets have shifted from pasture to corn-based grain, levels of omega-6s in meat have also climbed steeply as omega-3s have declined.

In short, the Western, or American, diet is high in omega-6s and low in omega-3s, especially when compared to traditional Mediterranean or Japanese diets. Yet the diets in all wealthy countries are becoming more American. The answer? Michael Pollan states it simply in his book In Defense of Food: “Eat food (not edible foodlike products). Not too much. Mostly plants. It is time to stop worrying about our intake of individual nutrients, and simply use our common sense. Those oven-roasted red potatoes with rosemary and olive oil actually do taste better than potato chips, and contribute to our health more than we could have imagined.

- Rebecca Taggart

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Gardening for Food & Fitness & Fun

Tuesday, April 20th, 2010

gardeningGardening offers a refuge from the stresses of modern living, be it tending a backyard orchard, plants in a window box, or a collection of potted herbs in the kitchen. Many of us have sedentary work indoors, and the stress of just getting to work and coping with deadlines can numb both our bodies and spirits.

Gardening contributes to wellness in many ways: psychologically, it takes us out of ourselves and brings us closer to nature; caring for plants and watching them grow reminds us to also care for ourselves. And plants reward us with their beauty, as well as fruits, vegetables, nutritional leaves and flowers to eat, if we are so inclined. The National Gardening Association has lots of resources on getting a garden started, including a handy food gardening guide.

Active gardening can provide all three types of exercise: endurance, flexibility, and strength. Heavy gardening, such as turning a compost pile or digging holes, burns as many calories per hour as a low-impact aerobics class (about 450 calories/hour), with the benefit of giving your arms and upper body a workout along with your legs. Regular gardening, such as weeding, pruning, and planting, burns about 250 calories/hour, and raking leaves around 350 calories/hour. Remember to stretch before active gardening. Avoid backache and knee strain by bending from the knees rather than the waist while raking, hoeing, and weeding, and always use your legs and not your back for lifting and carrying sacks of soil, compost, or large pots or plants.

Your time outdoors in the sun also ensures that your skin makes plenty of Vitamin D3, which many researchers say Americans need more of, particularly those over age 50. Among the many benefits of Vitamin D is mood elevation, which reinforces the positive psychological effects of gardening.

Don’t have a yard? Gardening in an apartment can give great pleasure too. Most plants and vegetables can be grown indoors with the right equipment. Window boxes can grow flowers or veggies, and can be rewarding gardens—or even a park—in miniature. One urban apartment dweller recounts how her box attracted a nesting pair of morning doves, who returned year after year. When she began leaving birdseed in the box for them, she started having visits from a squirrel! Whether your efforts attract wildlife or not, gardening is a healthy pleasure.

- Rebecca Taggart

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