Nutritional Supplement

7-KETO for Weight Control

7-Keto DHEA

7-KETO (3-acetyl-7-oxo-dehydroepiandrosterone) is a naturally occurring metabolite (breakdown product) of the hormone dehydroepiandrosterone (DHEA).1 DHEA is the most abundant of the adrenal steroid hormones and serves as a precursor for sex hormones, such as estrogen and testosterone.

Why Do Dieters Use It?*

Some dieters say that 7-KETO helps promote weight loss, when used along with a diet and exercise program.

What Do the Advocates Say?*

  • DHEA (dehydroepiandrosterone) is used by the body as a building block in the production of estrogen, testosterone, and progesterone. Only those who have been tested and found to be low in DHEA should consider taking this supplement; for these people, 7-Keto (3-acetyl-7-oxo-dehydroepiandrosterone) may improve metabolism and energy levels.
  • While 7-KETO was developed to avoid the potential hormone-like effects of DHEA, it is still important to consult a physician familiar with its use.
  • Some users have reported feeling “jittery” after taking as little as 100 mg of 7-Keto per day.

How Much Is Usually Taken by Dieters?

The ability of 7-KETO, a substance related to DHEA, to promote weight loss in overweight people has been investigated in one double-blind trial.2 Participants in the trial were advised to exercise three times per week for 45 minutes and to eat an 1,800-calorie-per-day diet. Each person was given either a placebo or 100 mg of 7-KETO twice daily. After eight weeks, those receiving 7-KETO had lost more weight and lowered their percentage of body fat further compared to those taking a placebo. These results may have been due to increases in levels of a thyroid hormone (T3) that plays a major role in determining a person’s metabolic rate, although the levels of T3 did not exceed the normal range.

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.

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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.