Unlike many supplements, Cholestin has been tested for safety and effectiveness in both animals and people. Cholestin is not likely to be as strong as Mevacor, but it does lower cholesterol. Pharmanex sells Cholestin through direct marketing and via the Internet. The answer is no, but it's a common misconception. Such marks on fingernails often indicate a slight injury to the nail.
Fingernails are mainly dead protein that get their strength from sulfur in amino acids.
Gelatin doesn't contain these amino acids. The American Dietetic Association's Media Source, January 1999. For years, older Americans have shied away from eggs because of their cholesterol level. However, eggs are easy to prepare, easy to chew, and are reasonably priced. The much maligned egg yolk is also a good source for the carotenoids, lutein and zeaxanthin, which give the yolk its bright yellow color.