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.

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The simple answer to this question is “yes.” However, as with most things in nutrition, there’s much more to this story. First, a little definition is in order. “If It Fits Your Macros” is a diet theory that stipulates that as long as you eat the right amounts of

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The most important and effective fat burner by far is lean protein and especially whey protein. Anyone who says different simply hasn’t considered all of the research correctly. Protein has been shown to increase metabolic rate, decrease hunger, and minimize losses

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Our new genetics project is called “MuscleGenes,” and I can honestly say that this may be the next big thing. Of course, everyone knew that gene testing would come to the fitness/sports world eventually, and now it actually has! The benefits are what you’d probably

Can a guy really get ripped doing the If It Fits Your Macros (IIFYM) diet? What is the hype all about anyway?

The simple answer to this question is “yes.” However, as with most things in nutrition, there’s much more to this story. First, a little definition is in order. “

What are the top three best fat-loss supplements you’d give a client?

The most important and effective fat burner by far is lean protein and especially whey protein. Anyone who says different simply hasn't considered all of the research correctly. Protein has been shown

What’s going on with your new genetics project? How does it work, and when can athletes get started on it? Details please!

Our new genetics project is called “MuscleGenes

You always recommend this and that, but what’s your supplement regimen look like?

I approach my supplementation like a scientist but I use products that have both “validated” ingredients and that work for the “guy on the street.” Not surprisingly, I use whey protein

What is all the hype about your Fitness Inventor website? Step in a gym, and maybe I’ll take you guys seriously.

Whoa, calm down buddy, let’s get the facts straight here! We’re one of the only websites in the industry that doesn't sell supplements or even advertise. In

For bulking, how many calories should I take in?

We’ve just had a similar question on our FitnessInventor.com website. For those who don’t know, Fitness Inventor is a fitness, health, and sports nutrition “Q&A” website with

I keep hearing that whey protein only lasts for about two hours in your system and that it’s not anti-catabolic. If this is true, how come so many guys use whey? Is casein better?

I've heard and read tons of claims about how quickly whey is digested from “experts”