Answers to featured health and nutrition questions provided by Michael Greger M.D. FACLM and the NutritionFacts.org Volunteer Moderators. Questions are taken from the video and blog comments throughout the site. Join in the discussion to get your question featured!


How do I fast for weight loss?

Researchers designed a study to compare the sustainability of weight loss at three different speeds: six days of fasting versus three weeks of a very-low-calorie diet of 600 calories a day or six weeks of a low-calorie diet of 1,200 daily calories....

Is flaxseed good for weight loss?

Yes. The consumption of flaxseeds has been shown in randomized controlled trials to reduce our body weight, body mass index (BMI), and waistlines. For more information on how flaxseeds aid weight loss, watch this video: [embed]https://www.youtube.com/watch?v=hQkg3HoamwU[/embed] Two of my favorite ways to...

How should flaxseeds be eaten?

It’s best to consume ground flax seeds. They come with nature’s own finest packaging: a hard natural hull that keeps them fresh for up to a year in an airtight container. Unfortunately, nature’s packaging is actually a little too good. If we...

What are the benefits of flaxseeds?

The benefits of flaxseed consumption are many, including: Reducing inflammation Weight loss Reducing hypertension Preventing and improving survival of breast cancer Improving prostate cancer survival Lowering blood sugar Improving ovarian function Looking for ways to incorporate ground flaxseeds into your menu? Check...

Can you cook with flaxseed? Does it destroy the nutrients?

No. Ground flaxseed added to baked goods has been shown to keep lignan stability up to 350°F. Flaxseed has such fantastic benefits that it’s in my Daily Dozen, but concerns about the naturally occurring cyanide content have recently surfaced, which is why...

Do weight loss pills work?

An analysis of more than a hundred clinical trials of anti-obesity medications lasting up to 47 weeks found that drug-induced weight loss never exceeded more than nine pounds. Considering the cost and side effects, that’s a lot of money and risk for...

How can I boost my metabolism?

Drinking two cups of water increases the metabolic rate of men and women by 30 percent. The metabolic boost starts within ten minutes of drinking water and reaches a maximum within an hour. In the 90 minutes after drinking a single, tall...

Can you get vitamin B12 without eating meat?

Yes. A regular, reliable source of vitamin B12, which is critical for anyone eating a plant-based diet, can be taken in the form of a supplement or B12-fortified foods. Vitamin B12 is not made by plants or animals, but by microbes that...

Is a vitamin B12 shot better than taking B12 orally?

Your doctor may want you to get vitamin B12 shots, but did you know that oral B12—even for those who can’t absorb it well—has long been considered one of medicine’s best kept secrets? In fact, it's been found that B12 supplements taken...

What is the best diet for weight loss?

The best diet for weight loss is a whole food, plant-based diet. In a randomized, controlled, community-based trial, participants were instructed to eat a whole food, plant-based diet without any calorie counting or portion control. They could eat as much as they...

How much apple cider vinegar is needed for weight loss?

I recommend two teaspoons of vinegar, including apple cider vinegar, with each meal. Never drink vinegar straight, though. Instead, flavor meals or dress a side salad with any of the sweet and savory vinegars out there. If you want to drink it,...

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