PAKs supplement improves immune status and body composition but not muscle strength in resistance trained individuals

Many dietary supplements are made commercially available in what is commonly referred to as PAKS. PAKS typically include several different pills and/or Tablets packaged in the same envelope to be ingested together.The original idea on these products, according to manufacturers [1] was to facilitate consumers the lifestyle, supplying all the substances and nutrients needed for one training session or any specific situation in a single dose, instead of taking it from several bottles or products with varying dosages.From the nutritional standpoint, a very important feature of these PAKS is that they deliver several components in a unique dose. Alone, these compounds are already known and have their nutritional properties established, however, when combined, they promote maximum performance on natural physiologic processes [2], as some compounds may serve as an energy source [3], as coenzymes in pathways that are specially important for exercise [2,3] and as ergogenic aids that might help to improve exercise performance [4]. When these properties are added, a combined effect is created resulting in higher performance and other benefits to the individuals.Sport supplement use among active people, especially those interested in gaining muscle mass, is very popular for those seeking better and faster results [5]. Supplement manufacturers often bring innovating compounds or new combinations of known substances, in order to meet market demands. Most of the times, the market need for innovation and production speed overcome scientific evidence regarding these innovations. Thus, little is known about the chronic effects of these new products.This study evaluated the effects of a mixed formula supplement on performance, body composition and immune status of recreational weightlifters.Twelve (n = 12) healthy and non-smoking males participated in this study. The subjects were divided in two groups, a Placebo (n = 6) [age 28.6 (6.9) years, height 174.0 (0.04) cm, weight 75.6 (10.2