I hear from lots of people every day who are concerned about how their diet is affecting their health.

They need answers based on facts, in other words, from the peer-reviewed medical literature, and that is what I'm here for.

Welcome to the Nutrition Facts Podcast.

I'm your host, Dr. Michael Greger.

Today we answer a wide variety of your questions like whether or not we

should include protein supplements, the potential benefits of niacin in the diet and the effects

of a vegan diet on irritable bowel syndrome.

Let's get your questions.

Okay, first question.

23-year-old want to build a lot of muscle for sport. Is it healthy to eat 1.5 grams,

protein per kilogram body weight if it's 100% from hopeful plant-based sources? And no point

of the daily dozen is missed.

So in Harnate age, in the anti-aging literature in general,

it really focuses on protein restriction,

reducing one's intake down to recommended levels,

which should be about half that 0.8 grams for a healthy gram body weight.

And that's for a whole variety of reasons we should talk about.

And at high levels of protein, it doesn't matter

in terms of, for example, IGF1 activation,

this pro-aging cancer-promoting hormone,

at high enough levels of protein intake,

it doesn't matter whether you're doing animal or plant,

...