Susan M. Kleiner

Carbohydrate is an essential fuel for high-intensity athletic training, yet many athletes are avoiding carbohydrates, particularly grains. Is it possible that eliminating an entire food group in search of health and performance is not the best choice? Learn more about why the types of grains one consumes is so important and how you can help your clients make healthier choices that will benefit both performance and their overall health.

Carbohydrate is an essential fuel for high-intensity athletic training, yet many athletes are avoiding carbohydrates, particularly grains. Is it possible that eliminating an entire food group in search of health and performance is not the best choice? Learn more about why the types of grains one consumes is so important and how you can help your clients make healthier choices that will benefit both performance and their overall health.

A growing body of research has many experts convinced that food can powerfully influence the brain in affecting our moods, mental focus and mental energy. Just in time for the often-stressful holiday season, here is a list of some of the most potent and well-documented foods, nutrients and supplements that can help improve how we feel.

As a health and fitness professional, many of your clients turn to you for help in improving both performance and appearance. While many have suggested that a low-carb diet might allow the body to better use other macronutrients as fuel, research suggests there is a better way to support high-intensity exercise, the specific form of training that yields both performance enhancement and a more sculpted physique.

What if everything you thought you knew about the glycemic index turned out to be wrong? What if all the scientists had it wrong, too? As it turns out, they did. Dr. Susan Kleiner sets the record straight on three common myths surrounding this frequently used measure of carbohydrate absorption—and how you can use this information to help your clients meet their health and weight-loss goals.

Cortisol, widely known as the stress hormone, can have significantly detrimental effects on the body. But have you ever wondered why the body would produce a hormone that only causes harm? Read on to learn about the good and the bad (and yes, the ugly) effects of cortisol and why exercise and recovery, in particular, are so important to enjoying more of the positive effects and less of the bad.

A growing body of research has many experts convinced that food can powerfully influence the brain in affecting our moods, mental focus and mental energy. Just in time for the often-stressful holiday season, here is a list of some of the most potent and well-documented foods, nutrients and supplements that can help improve how we feel.

As a health and fitness professional, many of your clients turn to you for help in improving both performance and appearance. While many have suggested that a low-carb diet might allow the body to better use other macronutrients as fuel, research suggests there is a better way to support high-intensity exercise, the specific form of training that yields both performance enhancement and a more sculpted physique.

What if everything you thought you knew about the glycemic index turned out to be wrong? What if all the scientists had it wrong, too? As it turns out, they did. Dr. Susan Kleiner sets the record straight on three common myths surrounding this frequently used measure of carbohydrate absorption—and how you can use this information to help your clients meet their health and weight-loss goals.