Dr. Gabe Mirkin on Fitness, Health and Nutrition

Chat with Dr. Mirkin’s AI research assistant about health issues that are discussed on the site

Low-Carbohydrate Diets Harm Athletic Performance

Low-Carbohydrate Diets Harm Athletic Performance

A study of elite race walkers shows that a low-carbohydrate, high-fat diet will slow their race times and training. Your muscles burn primarily fat and carbohydrates for energy. You have enough fat stored in your body to exercise for many days. However, you can store only 1600-2000 calories worth of sugar (carbohydrate) in your muscles and liver, and will start to run out of your meager supply of sugar after 70 minutes of intense exercise.

Low-Carbohydrate Diets Harm Athletic Performance

Eat to Compete

What you eat before and during a major competition can affect your performance enough to give you an edge over your peers. The days of “carbohydrate loading” are gone, but now athletes are being lured to try the LCHF fad — a low-carbohydrate, high-fat diet.

Tom Fleming, Marathoner Who Out-Trained Everyone Else

Tom Fleming, Marathoner Who Out-Trained Everyone Else

How could Tom Fleming have died of a heart attack at the very young age of 65, when at one time, he was one of the best marathon runners in the world? Fleming won the New York City Marathon twice, finished second in the Boston Marathon twice, won the Jersey Shore Marathon three times, and also the Los Angeles, Toronto, Tokyo, Washington, Cleveland and Jersey Shore Marathons.

Vitamin D Recommendations

Vitamin D Recommendations

Less than six percent of North Americans suffer from vitamin D deficiency, but nearly 20 percent take vitamin D pills. It is true that it is difficult to get adequate levels of vitamin D from sunshine during the winter months, but vitamin D is not a miracle vitamin that treats and prevents all sorts of diseases.

Vitamin D Recommendations

No Amount of Overweight is Healthful

Researchers at Boston University and Harvard reviewed three studies following more than 225,000 adults over age 50, for eight to twenty years, and showed that being even slightly overweight can increase your risk of dying by six percent, and in those who are obese, by...

Auto-Immune Diseases and Inflammation

Auto-Immune Diseases and Inflammation

Several recent articles suggest that inflammation associated with a faulty diet, lack of exercise, overweight and lack of vitamin D increases risk for autoimmune diseases. There is no strong evidence yet to show that any diet will cure auto-immune disease.