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The Case for Adding Berries to More Meals

After we eat, our bodies create free radicals in the process of breaking down our food. That’s why we need to eat antioxidant-rich foods with every meal to counteract the oxidation caused by metabolism. We can’t just have berries on our oatmeal in the morning to meet our Minimum Recommended Daily Allowance of Antioxidants and call it a day. Each and every meal should contain high antioxidant foods, which means that each and every meal should contain whole plant foods. Antioxidant rich foods originate from the plant kingdom, due to the thousands of different natural antioxidant compounds naturally created by the plants we eat.

Consuming fruits—which are high in phenolic phytonutrients—increases the antioxidant capacity of the blood. When fruits are consumed along with high fat and refined carbohydrate “pro-oxidant and pro-inflammatory” meals, they may help counterbalance their negative effects. Given the content and availability of fat and sugars in the Western diet, regular consumption of phenolic-rich foods, particularly in conjunction with meals, appears to be a prudent strategy to maintain oxidative balance and health.

And of all fruits, berries may be the best source of phytonutrients. In the above video, you can see an example of the spike in oxidation caused by a Mediterranean meal of pasta, tomato sauce, olive oil, and fried fish. Obviously, given the spike of oxidation, there were not enough tomatoes. Add a glass of red wine, which contains berry phytonutrients from grapes, and we can bring down, but not blunt completely, the level of oxidation. So the meal needs even more plants.

In a study I profile in the above video, researchers gave subjects standard breakfast items, resulting in lots of oxidized cholesterol in their blood stream one to six hours after the meal. But all it took was a cup of strawberries with that same breakfast to at least keep the meal from contributing to further oxidation. In the above video, you can see a comparison of breakfast with berries versus breakfast without.

If we don’t consume high-antioxidant plants with breakfast, by lunch we’ll already be in oxidative debt. Let’s say we ate a standard American breakfast at 6 a.m. If we didn’t eat that cup of strawberries with breakfast, by the time lunch rolls around we’d already be starting out in the hyper-oxidized state, and lunch could just make things worse. Since western eating patterns include eating multiple meals a day, including snacks, one can only speculate on the level of biological unrest.

But at least if we had some berries for breakfast we’d be starting out at baseline for lunch. This acute protection is likely due to the antioxidant effects of the strawberry phytonutrients.

What if, by lunch, we could be even better than baseline? How about our meals actually improving our antioxidant status? If, for example, we eat a big bunch of red grapes with our meal, the antioxidant level of our bloodstream goes up and our bodies are in positive antioxidant balance for a few hours. We get the same result after eating enough blueberries. And imagine if in these ensuing hours before our next meal we were sipping green tea, hibiscus tea or even whole cranberries? We’d have a nice antioxidant surplus all day long.

One group of researchers conclude: “These data provide an interesting perspective for advising individuals on food choice when consuming a moderate- to high-fat meal is unavoidable.” (Unavoidable? So what, if we’re locked in a fast food joint or something?) They suggest chasing whatever we’re forced to eat with some berries. Reminds me of those studies I’ve talked about suggesting that smokers should eat lots of kale and broccoli to reduce the oxidative damage to their DNA. Of course, they could also just not smoke.

In a single day, the systemic stress of all the fat in our blood and “redox imbalance” (being in a mild pro-oxidant state after meals) may seem trivial. Over time, however, these daily insults can lead to problems such as heart disease, contributing to the hundreds of thousands of deaths a year.

I strive to eat berries every day and so should everyone. If we are going to drink wine, red is preferable.

For more specifics, in How to Reach the Antioxidant RDA I get into the nitty gritty of meal planning and suggest that just reaching the minimum antioxidant recommendation may not be sufficient.

In health,
Michael Greger, M.D.

PS: If you haven’t yet, you can subscribe to my free videos here and watch my live year-in-review presentations Uprooting the Leading Causes of Death and More Than an Apple a Day.

Related:
Eating Outside Our Kingdom
Tricks to Get Adults to Eat Healthier
Combating Common Diseases With Plants

Read more: Health, Diet & Nutrition, Eating for Health, General Health, Healthy Aging, Men's Health, Natural Remedies, Videos, Women's Health, , , , , , , ,

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Dr. Michael Greger

A founding member of the American College of Lifestyle Medicine, Michael Greger, M.D., is a physician, author, and internationally recognized speaker on nutrition, food safety, and public health issues. Currently Dr. Greger serves as the Director of Public Health and Animal Agriculture at The Humane Society of the United States. Hundreds of his nutrition videos are freely available at NutritionFacts.org.

54 comments

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8:13PM PDT on Jun 10, 2014

love local organic or spray free berries. Frozen berries for winter!

7:19PM PDT on Jun 8, 2014

Good advice as always, Michael. Thanks :)

4:45PM PDT on Jun 8, 2014

ORGANIC ONLY!!!!!!!!!!!!

8:57AM PDT on Jun 7, 2014

Food is thy medicine

5:25AM PDT on Jun 7, 2014

Thanks

4:36AM PDT on Jun 7, 2014

I do like berries

4:35AM PDT on Jun 7, 2014

Thanks

9:19AM PDT on Jun 6, 2014

Thanks

7:27AM PDT on Jun 6, 2014

Thank you

6:39AM PDT on Jun 6, 2014

I love veggies and fruits! So much easier to get your vitamins this way.

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