Whey Protein Supplementation and Higher Total Protein Intake Do Not Influence Bone Quantity in Overweight and Obese Adults Following a 36-Week Exercise and Diet Intervention

Abstract

Background: Controversy exists concerning the effects of higher total protein intake (TPro) on bone health, which may be

Protein supplementation intake for bodybuilding and resistance training may impact sperm quality of subfertile men undergoing fertility treatment: a pilot study

“…Recently, it was shown that 23 of 24 dietary supplements available in fitness equipment and online shops contained anabolic steroids 2. However, these supposedly pro-androgenic supplements presumably differ from the more commonly used whey and soy protein supplements 34. Notwithstanding, both products are listed as dietary supplements rather than medical drugs; thus, they are not rigorously tested,5 do not necessarily list all contents,2 and consequently might contain known and unknown active components 36…”

“…We attempted to identify similar studies using literature search in electronic databases (PubMed, EMBASE, MedlinePlus, Ovid MEDLINE, and Scopus) from their inception to October 2017, albeit we failed to identify any previous publications on this matter. Based on the known product declaration of the protein supplements used by the men in the present pilot study, it predominantly consisted of whey, which is one of the two generally used protein dietary supplements – the other being soy 34. Previous studies investigated the potential impact of soy supplements on sex hormone levels whereas the evidence for whey products are scarce.…”

Effect of acid whey-fortified breads on caecal fermentation processes and blood lipid profile in rats

“…Wright et al . ( 30 ) did not find an influence of 9-month whey protein supplementation on bone quantity (bone mineral density or content) in overweight and obese adults.…”

“…Whey protein isolate and a free amino acid mixture simulating the amino acid composition of the whey protein isolate had a similar effect on satiety of normal-weight women as presented by Chungchunlam et al (29) . Wright et al (30) did not find an influence of 9-month whey protein supplementation on bone quantity (bone mineral density or content) in overweight and obese adults.…”

Animal, Plant, Collagen and Blended Dietary Proteins: Effects on Musculoskeletal Outcomes

“…However, the effects of animal protein during weight loss on (markers of) bone health remains poorly studied. One double-blind, randomised, placebo-controlled trial addressed this via whey protein supplementation (20 and ≥40 g) during a combined resistance and aerobic exercise training program in obese/overweight adults [92]. In this study, whey protein, regardless of dose, had no effect on BMD or bone mineral content (BMC) during the intervention.…”