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Superfoods: Food as Medicine

Eating foods packed with antioxidants can help keep you healthy and protect against disease.

Ronald D  Cotterel, M.D., M.S.

Contributor

Ronald D Cotterel, M.D., M.S.

Sutter Medical Foundation

Sutter Davis Hospital

No matter how the latest health trends change, some foods will always help prevent disease and keep us vital, says Ron Cotterel, M.D., M.S., a family medicine and integrative medicine doctor with the Sutter Medical Foundation.

“If you look at population studies, you’ll find that certain foods really do make a difference,” Dr. Cotterel says. “Why not get our medicine from food instead of paying someone to process it and separate it out?”

Superfoods are the powerhouses of the food chain, packed with antioxidants, anti-inflammatory and immune-boosting properties that help protect against everything from cardiovascular disease and cancer to arthritis and even depression.

Seek out these healthful nutrients:

  • Bioflavonoids — Plant pigments that produce yellow, red and blue colors in plants. Found in tea, citrus, blueberries, dark chocolate and wine, they are proven to help fight cancer, infection and inflammatory diseases.
  • Lycopene — An antioxidant phytonutrient found in tomatoes and red grapefruit that is a helpful tool in preventing certain cancers, most notably prostate cancer.
  • Polyphenols — A type of bioflavonoid that offers greater antioxidant protection than even vitamins C and E. They’re often found in fruits, vegetables and teas.
  • Epigallocatechin gallate — A substance found in green tea that is known for its anti-inflammatory properties. Studies have found it can help reduce cancer, increase sluggish metabolisms and reduce the inflammation that contributes to heart disease and possibly arthritis.
  • Resveratrol — An anti-inflammatory agent found in the skin of grapes, particularly red and dark-skinned grapes.
  • Omega-3 fatty acids — Provide powerful anti-inflammatory properties and are found in cold-water fish such as salmon, mackerel, sardines and herring, as well as walnuts and flax seeds. Omega-3s have been proven to reduce the risk of coronary artery disease and may also help prevent cancer, depression, asthma, arthritis, Parkinson’s disease and Alzheimer’s disease.
Cup of green tea

Selecting Your Superfoods

As any busy person knows, eating well isn’t always as easy as it sounds. In a 24/7 world, vitamins and supplements may seem like the best way to get all the nutrients you need. However, Dr. Cotterel says recent studies show supplements to be less effective than one might expect.

“When you consume nutrients in their natural form, you’re getting them along with many other healthy substances that maximize their effect,” Dr. Cotterel says. “Once you isolate the substance and take it away from its original source, you’re losing some of that synergism that makes it effective.”

Just as supplements can fail to deliver the same benefit as food itself, not all superfoods are created equal. According to Dr. Cotterel, a number of factors influence the potency of our foods. But there are proven methods for getting the greatest nutritional bang for your caloric buck:

  • Buy local — From the moment foods are harvested, they begin to lose their nutritional value, so purchase your foods as close to the source as possible. Foods that travel from Chile and Australia will not carry the same benefits as the foods found at your local farmers markets.
  • Buy organic — Organic food isn’t only about avoiding pesticides. Organic farming is based on sustainable agriculture practices, such as crop diversity, rotation and cover cropping, that helps re-build and protect the nutrients in soil. These are the very nutrients that ultimately end up in our food, thereby improving their nutritional value.
  • Pack your plate with color — Choose foods with bright colors for your meals. Chances are you’ll be tapping into those helpful bioflavonoids and lycopenes.
  • Pursue variety — Don’t get rigid about specific foods. Instead, work a variety of healthful foods into your diet each day. Look for ways to incorporate superfoods into your existing diet, such as placing flaxseed and blueberries on cereal, tomatoes in soup and walnuts in baked goods.

Top 10 Superfoods

When looking to incorporate superfoods into your diet, Dr. Cotterel recommends focusing on these 10 foods.

Tea

Green, black, oolong or white all deliver powerful health benefits at about three cups a day. Green tea in particular contains epigallocatechin gallate, which has been helpful in weight loss and cancer prevention.

Cold Water Fish 

Wild salmon, herring, sardines and mackerel are loaded with omega-3 fatty acids that calm the body’s inflammatory response, helping to reduce cholesterol and prevent heart disease. Omega-3s may also help prevent a range of inflammatory conditions, including asthma and arthritis, as well as depression. Dr. Cotterel encourages people to eat cold-water fish three or four times a week. For people who don’t eat fish, fresh fish oil capsules can help. 

Flaxseeds

Sprinkle flaxseeds on your cereal or yogurt for a punch of plant-derived omega-3s, as well as soluble fiber. Whole seeds will simply pass through your system, so be sure to eat ground flaxseed. For the freshest and healthiest flax, use a coffee grinder to prepare your own flaxmeal. Dr. Cotterel suggests starting with as little as a teaspoon a day and slowly working up to two to three tablespoons.

Citrus 

Packed with Vitamin C, citrus fruits are tried and true sources of immune-boosting bioflavonoids.

Blueberries 

Packed with bioflavonoids, try frozen organic berries when fresh berries are cost-prohibitive or from other continents.

Brussels Sprouts 

While they aren’t everyone’s favorite vegetable, Brussels sprouts — and any other food in the cabbage family —deliver components that protect against cancer. 

Tomatoes 

High in vitamin C and lycopenes, tomatoes are delicious cooked or raw and still deliver nutritional value canned. Can’t find local tomatoes in March? Try ruby grapefruit, which is also a great source of lycopenes.

Walnuts 

An easy protein-filled snack, walnuts are a great source of omega-3 fatty acids. Try walnuts in your cereal, salads, stir fries and baked goods. If you don’t care for walnuts, try out recipes for maple-glazed or spiced walnuts to temper the taste and acidity.

Grapes 

Red grapes are often praised for their heart healthy benefits thanks to resveratrol. Red or dark-skinned grapes can help you access this cancer-fighting agent. 

Dark Chocolate 

Choose 70 percent or greater dark chocolate to get powerful antioxidants, as well as a natural serotonin boost for your mood.

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