7-Keto-DHEA increases the rate of Ultra Fit Keto weight loss primarily by increasing body temperature through the process of thermogenesis. Thermogenesis is also increased by other supplements, such as DHEA, caffeine and ephedrine, but these substances often carry unwanted side effects, such as high blood pressure. Enhancement of thermogenesis, without the side effects, is one of the most important 7-Keto benefits. Adding to its advantages is the fact that 7-Keto can be used even in very large dosages without causing toxicity. One study found that test animals suffered no ill effects while taking the equivalent of 40,000 mg a day, which is about 200-400 times the standard dosage of 100 or 200 mg daily recommeded dose.