What we eat is less about what we choose and more about what’s offered to us, says food and climate expert Sarah Lake. Unpacking how governments and companies have driven up meat consumption in the US through extensive marketing, she...

Imagine if a wizard of meatless dining suddenly appeared on Earth and with one wave of a wand wiped away all meat from our shelves— along with any desire to eat it. Farm animals destined for food vanish, whisked away to another planet....

Our DNA holds thousands of dead genes and we’ve only just begun to unravel their stories. But one thing is already clear: we’re not just defined by the genes that we’ve gained over the course of our evolution, but also by the genes that...

As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?

You probably have a bag of frozen corn in your freezer, or have chowed down on a buttery ear of corn at a cookout. But not only did it take thousands of years for humans to domesticate teosinte to corral it into what we now know as corn,...

The paleo diet is becoming more popular, but research suggests its claims aren’t all that scientific. Hosted by: Michael Aranda

Rates of appendicitis vary around the world, likely due to the forces of modernization.



**Appendix** - There are many other unforeseen health changes that seem to be related to the forces of...

There are a few reasons that modern humans have to brush our teeth to stay healthy, even though our primate cousins don’t. Grab your floss and find the answers inside!

There are creatures who get some super important and recognizable part of their biology from their diets.

This video focuses on general functions of biomolecules. The biomolecules: carbs, lipids, proteins, and nucleic acids, can all can have important functions in the body. However, this video is not giving human dietary guidelines and...

In the US, 80% of girls have been on a diet by the time they're 10 years old. In this honest, raw talk, neuroscientist Sandra Aamodt uses her personal story to frame an important lesson about how our brains manage our bodies, as she...

An intermittent fasting diet is one of the hippest new nutrition and fitness philosophies, based around the idea that going hungry can be good for your health. Some think it's a weight loss secret that calls upon our ancient evolutionary...

Gluten is a sticky protein composite found in cereal grains. Hank gives us some insight into the importance of gluten in history, as well as its impact on health in our own time.

The paleo diet is becoming more popular, but research suggests its claims aren't all that scientific.

Conventional wisdom about diets, including government health recommendations, seems to change all the time. And yet ads routinely come out claiming to have THE answer about what we should eat. So how do we distinguish what's actually...

Have you bought into a low-carb or low-fat diet? Which one is the better answer for people who want to lose weight? It turns out, they both work about the same. A giant new study on nutrition is the subject of this week's HCT.

Howcast - Learn how to lose weight on a protein diet in this Howcast video featuring dietician Lisa Markovitz.

Howcast - Learn why you should eat flaxseeds, and mistakes to avoid when eating them, from nutrition expert Alex Jamieson in this Howcast video.

Howcast - Learn about a ketogenic diet for epilepsy from Steve Wolf, MD and Patty McGoldrick, NP in this Howcast video.

Howcast - Learn five ways to improve your heart health from Dr. Dennis Finkielstein in this Howcast video.

Howcast -Learn how to lose weight on the Eat Right for Your Type diet from Carolyn Dean, M.D. in this Howcast video.

Howcast -Learn how to lose weight on the 17 Day Diet from Carolyn Dean, M.D. in this Howcast video.

Scientists have found that the fertility rate of captive rhinos is being compromised. What they're doing to fix it.

Most diets that are fed to rhinos at zoos are associated with low fertility. Here's how scientists are fixing that.