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| Michael Greger |
Michael Greger, M.D., is a physician and Director of Public Health and Animal Agriculture at the Humane Society of the United States. He is an internationally recognised speaker on a number of important public health and social justice issues. He is also the author of Carbophobia: The Scary Truth Behind America's Low Carb Craze and Heart Failure: Diary of a Third Year Medical Student, and he has contributed to a number of other books on nutrition and food safety issues.
In addition to debating the National Cattlemen's Beef Association Director before the FDA, Dr. Greger was invited as an expert witness to defend Oprah Winfrey in the infamous "meat defamation trial."
He is a graduate of the Cornell University School of Agriculture and the Tufts University School of Medicine.
drgreger.org
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Reference:
The Humane Societyhttp://www.hsus.org/
NutritionFacts.Org is brought to you by the Jesse & Julie Rasch Foundation in partnership with Michael Greger M.D. Dr. Greger scours the world of nutrition-related research, as published in scientific journals, and brings that information to you in short, easy to understand video segments. We also provide links to the original journal articles whenever possible so that you can source the information directly, if you so desire.
Collection of Videos:
In today’s NutritionFacts.org video-of-the-day Golden glow, and tomorrow’s, Produce, not pills to increase physical attractiveness, I review the new research suggesting the consumption of dark green leafy vegetables improves the healthy appearance of Caucasians* due to carotenoid deposition in the skin. Taking those same phytonutrients in pill form, though, doesn’t work. We should strive to get most of our nutrients from plants, not pills.
The balance of scientific evidence suggests that the healthiest way to eat is a vitamin B12-fortified diet of whole plant foods. For optimum nutrition, we should be sure to include in our daily diet not only an array of whole grains, beans, nuts, seeds, fruit, and as many vegetables as we can eat, but also specifically dark green leafy vegetables, berries, and white (or green) tea.
Attention should also be paid to these nutrients:
Vitamin B12 (see also Which type of vitamin B12 is best)
* Due to the pervasive under-representation of traditionally marginalized groups in clinical research, comparable science across the skin color spectrum is not yet available.
Optimum Nutrition Recommendations
Written by: Michael Greger M.D. on September 12th, 2011In today’s NutritionFacts.org video-of-the-day Golden glow, and tomorrow’s, Produce, not pills to increase physical attractiveness, I review the new research suggesting the consumption of dark green leafy vegetables improves the healthy appearance of Caucasians* due to carotenoid deposition in the skin. Taking those same phytonutrients in pill form, though, doesn’t work. We should strive to get most of our nutrients from plants, not pills.
The balance of scientific evidence suggests that the healthiest way to eat is a vitamin B12-fortified diet of whole plant foods. For optimum nutrition, we should be sure to include in our daily diet not only an array of whole grains, beans, nuts, seeds, fruit, and as many vegetables as we can eat, but also specifically dark green leafy vegetables, berries, and white (or green) tea.
Attention should also be paid to these nutrients:
Vitamin B12 (see also Which type of vitamin B12 is best)
- At least 2,500 mcg (µg) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement
- or at least 250 mcg daily of supplemental cyanocobalamin (you needn’t worry about taking too much)
- or servings of B12-fortified foods three times a day, each containing at least 25% U.S. “Daily Value” on its label
- Those over 65 years of age should take at least 1,000 mcg (µg) cyanocobalamin every day.
- Tip: If experiencing deficiency symptoms, the best test is a urine MMA level (not serum B12 level)
- 250 to 500 mg daily of yeast- or algae-derived DHA and/or EPA
- Below approximately 30°latitude (south of Los Angeles/Dallas/Atlanta/Cairo)
- 15-30 minutes of midday sun (15 for those with lighter skin; 30 for those with darker skin)
- or 2,000 IU supplemental vitamin D
- Between 30° latitude (sample cities above) & 40°latitude (Portland/Chicago/Boston/Rome/Beijing)
- From February through November
- 15-30 minutes of midday sun (15 for those with lighter skin; 30 for those with darker skin)
- or 2,000 IU supplemental vitamin D
- From December through January
- 2,000 IU supplemental vitamin D
- Between 40° latitude (sample cities above) & 50°latitude
(Edmonton/London/Berlin/Moscow) - From March through October
- 15-30 minutes of midday sun (15 for those with lighter skin; 30 for those with darker skin)
- or 2,000 IU supplemental vitamin D
- From November through February
- 2,000 IU supplemental vitamin D
- Above approximately 50°latitude (north of Edmonton/London/Berlin/Moscow)
- From April through September (or even briefer above 60°latitude (Anchorage/Stockholm))
- 15-30 minutes of midday sun (15 for those with lighter skin; 30 for those with darker skin)
- or 2,000 IU supplemental vitamin D
- From October through March (or even longer above 60°latitude (Anchorage/Stockholm))
- 2,000 IU supplemental vitamin D
- At least 600 mg daily via calcium-rich plant foods—preferably low-oxalate dark green leafy vegetables, which includes all greens except spinach, chard, and beet greens (all very healthy foods, but not good calcium sources due to their oxalate content).
- For those who don’t eat seaweed or use iodized salt, a 150 mcg daily supplement
- The sea vegetable hijiki (hiziki) should not be eaten due to high arsenic levels
- Kelp should be avoided as it tends to have too much iodine
- All menstruating women should increase their absorption by combining foods rich in iron and vitamin C at meals and should get checked for iron-deficiency anemia every few years
- Men should be checked for an iron overload disease before any attempt to increase intake
- Northern Europeans may need to take a supplement or eat a daily Brazil nut
* Due to the pervasive under-representation of traditionally marginalized groups in clinical research, comparable science across the skin color spectrum is not yet available.
