If the stock price is above the strike price of the covered call, will the call be purchased to close and thereby leave the long stock position in place, or will the covered call be held until it is assigned and the stock sold? Maximum profit for the short straddle is achieved when the underlying stock price on expiration date is trading at the strike price of the options sold.
Studies involving humans are for the most part badly designed. A few quality studies have been carried out over the years, starting in 1998 with a double-blind, placebo-controlled trial of 135 adults over 12 weeks published in The Journal of the American Medical Association. They found no evidence that hydroxycitric acid, the active ingredient in weight loss products made from garcinia cambogia, produced significant weight loss.
The American Journal of Clinical Nutrition in 2004 published a systematic review of meta-analyses and clinical trials on dietary supplements for weight loss by complementary medicine researchers at the Universities of Exeter and Plymouth.