collagen 400mg/kg) and the same amount of protein (100g/day) for 6 weeks.
The results showed that the protein intake was significantly higher in the group that consumed the high-protein diet than in those that did not. The protein content of the diet was also higher than that of those who consumed a low-carbohydrate diet. However, the difference in protein consumption between the groups was not significant. This suggests that a high protein diet is not necessary for the maintenance of muscle mass.
200 mg collagen
, 1.5 mg lutein, 2 mg zeaxanthin and 1 mg selenium.
The study was conducted in the laboratory of Dr. Y. S. K. Chaudhary, a professor of dermatology at the University of California, San Francisco. The study is published in The Journal of Clinical Investigation.
collagen hyaluronic acid tablets
, and the use of a topical gel containing hydrating agents.
The study was conducted in a randomized, double-blind, placebo-controlled, parallel-group, crossover design. The primary outcome was the change in serum total cholesterol, LDL cholesterol and HDL cholesterol levels. Secondary outcomes included changes in blood pressure, blood glucose, triglycerides, insulin, glucose tolerance, body weight, serum creatinine, creatine kinase, uric acid, total bilirubin, biliverdin, thiamine mononitrate, vitamin B12, riboflavin and vitamin C. All participants were provided with a written informed consent.
collagen tablets
, and the use of a combination of these products.
The study was conducted in the United States, but the results may apply to other countries. The authors of the study did not have access to the data.
hyaluronic acid and collagen capsules
.
The study was published in the journal Clinical Endocrinology & Metabolism.