Nutritional Supplement

7-KETO for Weight Control

Also indexed as: 7-KETO
7-Keto DHEA

Possible Deficiencies

Since the level of 7-KETO is directly related to the level of DHEA in the body,5 people with lower DHEA levels likely have low 7-KETO levels as well. Low DHEA levels are primarily associated with aging.

Side Effects

A safety study in humans has shown that 7-KETO did not raise estrogen or testosterone levels or produce any other negative effects at levels up to 200 mg per day for eight weeks.6 Short-term animal studies also revealed no adverse effects with large amounts of 7-KETO.7,8,9 However, the long-term safety of 7-KETO for humans has not been demonstrated, and, because it is chemically related to steroid hormones, the potential for adverse effects must be considered. In addition, the increase in T3 levels resulting from taking 7-KETO could, in theory, produce adverse effects on the heart or promote bone loss. For these reasons, people wishing to take 7-KETO, particularly those who have a thyroid disorder or are taking thyroid hormone, should consult a physician.

References

1. Lardy H, Kneer N, Wei Y, et al. Ergosteroids. II: Biologically active metabolites and synthetic derivatives of dehydroepiandrosterone. Steroids 1998;63:158-65.

2. Kalman DS, Colker CM, Swain MA, et al. A randomized, double-blind, placebo controlled study of 3-acetyl-7-oxo-dehydroepiandrosterone in healthy overweight adults. Curr Ther Res 2000;61:435-42.

3. Sedláčková B, Dušátková L, Zamrazilová H, et al. 7-oxygenated derivatives of dehydroepiandrosterone and obesity. Prague Med Rep 2012 ;113(2):147–55.

4. Schirmer MA, Phinney SD. Gamma-linolenate reduces weight regain in formerly obese humans. J Nutr 2007;137:1430-35.

5. Lardy H, Kneer N, Wei Y, et al. Ergosteroids. II: Biologically active metabolites and synthetic derivatives of dehydroepiandrosterone. Steroids 1998;63:158-65.

6. Davidson MH, Weeks CE, Lardy H, et al. Safety and endocrine effects of 3-acetyl-7-oxo DHEA (7-keto DHEA). FASEB J 1998;12:A4429.

7. Lardy H, Henwood SM, Weeks CE. An acute oral gavage study of 3beta-acetoxyandrost- 5-ene-7,17-dione (7-oxo-DHEA-acetate) in rats. Biochem Biophys Res Commun 1999;254:120-3.

8. Henwood SM, Weeks CE, Lardy H. An escalating dose oral gavage study of 3beta-acetoxyandrost-5-ene-7, 17-dione (7-oxo-DHEA-acetate) in rhesus monkeys. Biochem Biophys Res Commun 1999;254:124-6.

9. Weeks C, Lardy H, Henwood S. Preclinical toxicology evaluation of 3-acetyl-7-oxo-dehydroepiandrosterone (7-keto DHEA). FASEB J 1998;12:A4428.

Copyright © 2024 TraceGains, Inc. All rights reserved.

Learn more about TraceGains, the company.

The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2024.