Mark Gilbert

Mark Gilbert BSc (Nutrition)
Mark is an expert in sports nutrition and dietary supplements. He has over 20 years of experience working with the biggest names in the bodybuilding industry.

Columns

I read your online column on Muscle-Insider.com while I’m at work, and you’re one of the smartest in the industry by far! How much does it cost to hire you to do my diet?

I doubt that I’m the “smartest,” but your question allows me to get on my soapbox and have a little

What’s your opinion on the use of ephedrine for fat loss? Do you think it should have ever been banned in the USA?

Ephedrine is a stimulant similar to amphetamine but with substantially less potent effects. It was banned about five years ago in the USA because it was “

I heard usnic acid is a great fat-loss supplement and is used quite often overseas. What’s your take?

Usnic acid is not used in the bodybuilding scene over here in England or in any other part of Europe. In fact, in Italy, usnic acid has been used in vaginal creams, foot

L-carnitine is supposed to burn fat inside the muscle, but my biochemistry teacher said that the stuff’s a total scam. Is this true?

L-carnitine is not a scam. It’s a fascinating amino acid for many reasons. It’s essential to mobilizing fat and can increase fat burning.

Q. Why should I be taking glutamine? Is it a good fat burner?

A. Dr. Dan Reardon and I have never been huge fans of the amino acid glutamine because it’s never actually been shown to outperform other amino acids or other

Q. With my next fitness competition only a few months away, I need an edge if I’m going to place. Should I buy organic foods to prepare my meals this time? Is going organic healthier?

A. Okay, I’ve been saying this for

Q. I drink diet cola when I’m cutting up because it has no calories. It feels almost like a cheat because it tastes sweet, but I’m a bit concerned. I keep hearing that sweeteners are unsafe. Do they really promote fat gain and cause calcium leaching from

Q. Mark, I read your column every issue for supplement advice. Why haven’t you started your own supplement company?

A. A few reasons, really. If you look at virtually everyone who’s ever started a highly successful

Q. How powerful is ephedrine as a fat burner? In your opinion, was the USA ban on its use justified?

A. Ephedrine is a stimulant similar to amphetamine but with substantially less potent effects. It was banned about five years ago in

Q. Is it true that whey protein can actually help you burn fat?

A. Last issue, I wrote about all of the underreported health benefits that make whey protein one of the healthiest foods you can eat, how it can increase nitric oxide, and the importance of