Researchers at Texas Chiropractic College, in Pasadena, studied children in the National Health Interview Survey (NHIS) in order to estimate their use of supplements. (more…)

 Muscle and strength loss occur during periods of physical inactivity and immobilization.

Researchers from St Francis Xavier University, in Antigonish in Canada report the effects of creatine supplementation on upper limb muscle mass and performance after immobilization. (more…)

 Researchers from the University of California San Francisco studied whether creatine supplementation augments the effects of progressive resistance exercise training on muscle strength, energetics, and body composition. (more…)

 It reportedly improves certain aspects of cognitive (reasoning) and psychomotor function in older individuals and in young people following sleep deprivation, according to researchers at Bloomsburg University in Pennsylvania.

But what about in healthy young people? (more…)

There’s a need, but no well-documented evidence.

Researchers from the Miami VA Medical Center in Florida have complied a detailed review. (more…)

Recently, 4 patients experienced seizures multiple times following heavy consumption of energy drinks. The authors proposed that energy drinks rich in caffeine, taurine, and guarana seed extract could have provoked these seizures.

Here’s what we know about guarana thanks to researchers from the University of Florida at Gainesville and the Brazilian Agricultural Research Corporation (EMBRAPA) in Amazonas, Brazil. (more…)

In patients with polymyositis and dermatomyositis — conditions characterized by weakness and swelling of limb and neck muscles — taking creatine supplements enhanced the benefit of exercise. (more…)

The former produces skin inflammation and muscle weakness. People with the later condition get weakness of limb and neck muscles, with muscle pain and swelling. (more…)

These data are from a telephone survey of more than 2500 randomly sampled noninstitutionalized Americans, which was published in 2002. The tables can also be found here. (more…)