All Videos for Obesity

Do Vegetarians Really Have Higher Stroke Risk?

The first study in history on the incidence of stroke of vegetarians and vegans suggests they may be at higher risk.



How to Prevent the Next Pandemic

We need to reform the food system before it’s too late.



The Role of the Toxic Food Environment in the Obesity Epidemic

Implausible explanations for the obesity epidemic, such as sedentary lifestyles or lack of self-discipline, serve the needs of the manufacturers and marketers more than the public’s health and the interest in truth.



The Role of Corporate Influence in the Obesity Epidemic

Like the tobacco industry adding extra nicotine, the food industry employs taste engineers to accomplish a similar goal: maximize the irresistibility of their products.



The Role of Personal Responsibility in the Obesity Epidemic

How the power of the “eat more” food environment can overcome our conscious controls.



The Role of Food Advertisements in the Obesity Epidemic

We all like to think we make important life decisions like what to eat consciously and rationally, but if that were the case we wouldn’t be in the midst of an obesity epidemic.



The Role of Marketing in the Obesity Epidemic

The unprecedented rise in the power, scope, and sophistication of food marketing starting around 1980 aligns well with the blastoff slope of the obesity epidemic.



The Role of Taxpayer Subsidies in the Obesity Epidemic

Why are U.S. taxpayers giving billions to support the likes of the sugar and livestock industries?



The Role of Processed Foods in the Obesity Epidemic

The rise in the U.S. calorie supply responsible for the obesity epidemic wasn’t just about more food but a different kind of food.



Cut the Calorie-Rich-And-Processed Foods

We have an uncanny ability to pick out the subtle distinctions in calorie density of foods, but only within the natural range.



The Thrifty Gene Theory: Survival of the Fattest

Rather than being some kind of disorder or failure of willpower, weight gain is largely a normal response, by normal people, to an abnormal situation.



The Role of Genes in the Obesity Epidemic

The big fat “fat gene” accounts for less than 1% of the differences in size between people.



The Role of Diet vs. Exercise in the Obesity Epidemic

The common explanations for the cause of the obesity epidemic put forward by the food industry and policymakers, such as inactivity or a lack of willpower, are not only wrong, but actively harmful fallacies.



Pandemics: History and Prevention

How to treat the cause by preventing the emergence of pandemic viruses in the first place (a video I recorded more than a decade ago when I was Public Health Director at the HSUS in Washington DC).



What Are the Best Beverages?

A review of reviews on the health effects of tea, coffee, milk, wine, and soda.



Why People Gain Weight in the Fall

A list of “specific recommendations for the prevention of obesity by improving the circadian system health.”



Shedding Light on Shedding Weight

Randomized, controlled trials of phototherapy (morning bright light) for weight loss.



The Metabolic Harms of Night Shifts and Irregular Meals

What shift workers can do to moderate the adverse effects of circadian rhythm disruption.



How to Sync Your Central Circadian Clock to Your Peripheral Clocks

Bright light exposure synchronizes the central circadian clock in our brains, whereas proper meal timing helps sync the timing of the clock genes throughout the rest of our body.



How Circadian Rhythms Affect Blood Sugar Levels

The same meal eaten at the wrong time of day can double blood sugars.



Eat More Calories in the Morning than the Evening

Why are calories eaten in the morning less fattening than calories eaten in the evening?



Breakfast Like a King, Lunch Like a Prince, Dinner Like a Pauper

Harness the power of your circadian rhythms for weight loss by making breakfast or lunch your main meal of the day.



Chronobiology – How Circadian Rhythms Can Control Your Health and Weight

Given the power of chronotherapy—how the same dose of the same drugs taken at a different time of day can have such different effects—it’s no surprise that chronoprevention approaches, like meal timing, can also make a difference.



Is Skipping Breakfast Better for Weight Loss?

Breakthroughs in the field of chronobiology—the study of our circadian rhythms—help solve the mystery of the missing morning calories in breakfast studies.



Is Breakfast the Most Important Meal for Weight Loss?

Is the link between breakfast skipping and obesity cause-and-effect?



Are BCAA (Branched Chain Amino Acids) Healthy?

Why we may want to strive not to exceed the recommended intake of protein.



Are Weight-Loss Supplements Effective?

Are there any safe and effective dietary supplements for weight loss?



Are Weight-Loss Supplements Safe?

Only 2 out of 12 supplement companies were found to have products that were even accurately labeled.



The Benefits of Early Time-Restricted Eating

Calories eaten in the morning count less and are healthier than calories eaten in the evening.



Time-Restricted Eating Put to the Test

Are there benefits to giving yourself a bigger daily break from eating?



Trailer for How Not to Diet: Dr. Greger’s Guide to Weight Loss

17 ingredients to an ideal weight-loss diet and the 21 tweaks to accelerate the further loss of excess body fat.



The 5:2 Diet and the Fasting-Mimicking Diet Put to the Test

The effects of eating only 5 days a week or a fasting-mimicking diet 5 days a month.



Evidence-Based Weight Loss – Live Presentation

In this live presentation, Dr. Greger offers a sneak peek into his book How Not to Diet.



Does Intermittent Fasting Increase Human Life Expectancy?

Alternate-day modified fasting is put to the test for lifespan extension.



Is Alternate-Day Intermittent Fasting Safe?

Eating every other day can raise your cholesterol.



Alternate-Day Intermittent Fasting Put to the Test

Does every-other-day-eating prevent the metabolic slowing that accompanies weight loss or improve compliance over constant day-to-day calorie restriction?



Is Fasting for Weight Loss Safe?

The reasons why fasting longer than 24 hours, and particularly three or more days, should only be done under the supervision of a health professional and preferably in a live-in clinic.



Is Fasting Beneficial for Weight Loss?

Fasting for a week or two is like the keto diet—it can actually slow body fat loss rather that accelerating it.



Benefits of Fasting for Weight Loss Put to the Test

For more than a century, fasting—up to 382 days without calories—has been used a weight-loss treatment.



Potential Pitfalls of Calorie Restriction

How to preserve bone and mass on a low calorie diet.