Lyle McDonald

Lyle McDonald BSc.
Lyle is a researcher and coach who has worked with bodybuilders, powerlifters and other athletes on all aspects of their training, diet, and supplementation.


Question: I have three of your books and find them very informative. I have a question you don’t address in your books. Does taking Benadryl (diphenhydramine) negatively affect either muscle building or fat loss?

Answer: Regular antihistamine use can negatively

Question: I’ve been following a very low-carbohydrate diet and taking the ephedrine/caffeine stack for the past four months. Recently I’ve been having problems with cramping in the gym. I find that if I get too close to failure on a set, I get very bad cramps. I’m

Question: What do you think about Hany Rambod’s FST-7 training system?

Answer: FST-7 is a system that involves both heavy weight training (heavy sets in the 8–12 repetition range) but follows up each body part with 7 sets of 7 (hence the name) with a short

Q. Is it true that certain types of fats can help reduce bodyfat?

A. Absolutely. Probably the single most studied class of fats in that regard is the omega-3 fatty acids. The parent fatty acid is alpha-linolenic acid. In the body ALA goes through a number of

Q. How do ketogenic diets work?

A. Under normal conditions the body burns either glucose or fatty acids for fuel. It can also break down protein, or amino acids, to produce glucose if enough carbs aren’t available. Most tissues in the body burn either

Q: Is aspartame safe or does it cause brain tumors? Where did this myth come from or should I be worried and stop drinking Diet Coke?

A. In predisposed rats fed absolutely horse doses of the stuff (the amounts given in these situations are so far beyond what any human

Q. Stuart McRobert said once that the most a drug-free bodybuilder can ever hope to build is an 18-inch arm, 300-pound bench, 400-pound squat and 500-pound deadlift and no more. What are your thoughts on this?

A. This is an example

Q: What is Doggcrapp training, and what’s your opinion on its use for bodybuilding from a scientific perspective?

A. Doggcrapp (aka DC) training is the brainchild of a guy named Dante Trudel, a buddy of mine. In short, it’s based around the use of

Q. How do caffeine-based fat burners trigger fat loss?

A. Caffeine is, of course, a stimulant. When you take it in, the body releases two hormones, epinephrine and norepinephrine (also called adrenaline and noradrenaline, respectively), from the

QUESTION: I’ve heard that I need to cut dairy out of my diet to lose fat. Is that true?

ANSWER: A long-held idea in the bodybuilding world is that dairy makes you smooth, and the belief that it needs to be removed from a fat-loss diet (especially a contest diet