Optimizing Post-Exercise Recovery

Why was this study done? The role of hormones (insulin, testosterone, growth hormone) in muscle building is fairly well established. What is less understood is the role of macronutrients (protein, carbohydrate, fats) and their impact on those hormones. This study was designed to help understand the importance of post-exercise supplementation for anabolic hormone production. Participants…

Alfalfa and Canavanine

Why was this article written? There had been a concern raised about L-canavanine (an amino acid present in alfalfa seeds and sprouts) and vitamin E and their relationship to autoimmune disorders. The basis for these concerns appeared in a case study published in a journal. Alfalfa supplements, which are manufactured using mature alfalfa (and not…

What Drives Our Thirst?

Why was this study done? It has long been thought that thirst and dehydration sensations are regulated by plasma osmolality (concentration of electrolytes). This study was designed to help understand the mechanisms underlying thirst. What did the study find? That the act of drinking produces a neural response (through  a hormone called norepinephrine) that alerts…

Dietary Fiber and Cardiovascular Risk

Why was this study done? There is a well-established relationship between fiber intake and cholesterol levels. Many of the studies performed, though, have been short-term in nature. This study was designed to assess the effectiveness and feasibility of long-term (six months) supplemental fiber. What did the study find? A mixture containing water-soluble dietary fiber (psyllium,…

Dehydration and Fatigue in Athletes

Why was this study done? Dehydration is thought to play an important role in the management of fatigue for athletes. This study was designed to help understand the role of rehydration formulas, their relationship to plasma volume, and fatigue. What did the study find? The formula (AA) provided the larger pre-exercise volume, greater acid-buffering, and…