Today we speak to Dr. Walter Willett from Harvard T.H. Chan’s School of Public Health. Walter is the most cited nutritionist in the world. Our conversation goes over some of nutrition science’s greatest successes: the banning of trans fats. We also talk about what the biggest problem in our diet today is, what nutrition science has gotten wrong, why there seems to be so much conflicting information about what to eat, and more.

Is there anything better than a piping hot cup of coffee on a frigid winter day, or the first cold brew of a beautiful summer? For a lot of us… likely not. Coffee is the way we kick off a day, pick up an afternoon, and rehash the work week with a friend on the weekend. Besides saving us an untold amount of cash, is there any health benefit to giving up coffee? Or is it actually making us live longer? Today we talk Professor Rob Van Dam from George Washington University and answer the question of caf, decaf, or no-caf: what science tells us about coffee, caffeine, and health.

A cocktail with your friends, a glass of wine after work, a beer at a barbecue–alcohol is everywhere. Undoubtedly, it’s been an integral part of our society for thousands of years. But when it comes to its effects on our health, results can feel more mixed than your favorite margarita. Is alcohol a “poison,” or maybe, in moderation, is it actually ok, or even good for us?

Today, you've got Q's, we've got A's! What do you do if you don't like resistance training? How do you get back into the gym after a long break? Can you lose weight if you're eating junk food? And how can you get kids to eat healthy without putting certain foods off limits? Join us for this spooky Q&A.