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Androstenedione (Andro): Buyer Beware

Researchers tested the supplements on 20 healthy men as they undertook eight weeks of weight training. Creatine and androstenedione--two "dietary supplements". J Clin Invest ;45 3: Oral androstenedione administration and serum testosterone concentrations in young men.

What is a dietary supplement?

Can It Hurt You? And they're not the answers that andro users want to hear. At this time there is not enough scientific information to determine an appropriate range of doses for androstenedione. Ann Emerg Med ; Dietary supplements include vitamins, minerals, herbs, botanicals, enzymes, amino acids, or other dietary ingredients. Effects of anabolic precursors on serum testosterone concentrations and adaptations to resistance training in young men.

Sex hormone levels in the serum of patients with pancreatic adenocarcinoma. Horm Metab Res ;29 3: Androstenedione production and interconversion rates measured in peripheral blood and studies on the possible site of its conversion to testosterone. J Clin Invest ;45 3: Ingestion of a dietary supplement containing dehydroepiandrosterone DHEA and androstenedione has minimal effect on immune function in middle-aged men.

J Am Coll Nutr ;22 5: C 19 ene steroids in nature. Metabolism of orally administered androstenedione in young men. J Clin Endocrinol Metab ;86 8: The association of hyperestrogenemia with coronary thrombosis in men. Arterioscler Thromb Vasc Biol ;16 Steroid sulphatase inhibitors for breast cancer therapy. J Steroid Biochem Mol Biol ;86 Analysis of the nutritional supplement 1AD, its metabolites, and related endogenous hormones in biological matrices using liquid chromatography-tandem mass spectrometry.

Testosterone and doping control. Br J Sports Med ;40 Suppl 1: Over-the-counter anabolic steroids 4-androsten-3,dione; 4-androsten-3beta,17beta-diol; and norandrosten-3,dione: J Anal Toxicol ;23 5: Effects of norandrostenedione and norandrostenediol in resistance-trained men. The effects of supplementation with norandrostene-3,dione and norandrostene-3,diol on body composition and athletic performance in previously weight-trained male athletes.

Eur J Appl Physiol ;84 5: The acute effects of androstenedione supplementation in healthy young males. Can J Appl Physiol ; Four weeks of androstenedione supplementation diminishes the treatment response in middle aged men. Br J Sports Med ; Arch Intern Med ; Acute hormonal response to sublingual androstenediol intake in young men. J Appl Physiol ; Endocrine responses to chronic androstenedione intake in to year-old men.

J Clin Endocrinol Metab ; Effects of androstenedione-herbal supplementation on serum sex hormone concentrations in to year-old men. Int J Vitam Nutr Res ; Effects of anabolic precursors on serum testosterone concentrations and adaptations to resistance training in young men.

Trace contamination of over-the-counter androstenedione and positive urine test results for a nandrolone metabolite. Analysis of over-the-counter dietary supplements.

Clin J Sport Med ; Priapism after androstenedione intake for athletic performance enhancement. Ann Emerg Med ; Effect of androstenedione ingestion on plasma testosterone in young women; a dietary supplement with potential health risks. Clin Chem ;49 1: Effect of oral androstenedione on serum testosterone and adaptations to resistance training in young men.

A randomized controlled trial. Oral androstenedione administration and serum testosterone concentrations in young men. Effects of oral androstenedione administration on serum testosterone and estradiol levels in postmenopausal women.

J Clin Endocrinol Metab ;87 Production of premature delivery in pregnant rhesus monkeys by androstenedione infusion. National Collegiate Athletic Association. Androstenedione does not stimulate muscle anabolism in young healthy men.

Effects of adrenal androgens on the transplantable human prostate tumor PC The effects of ergogenic compounds on myogenic satellite cells.

Med Sci Sports Exerc ; Effects of dehydroepiandrosterone vs androstenedione supplementation in men. Testosterone, androstenedione and dihydrotestosterone concentrations are elevated in female patients with major depression. Conditions of Use and Important Information: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects.

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WebMD does not endorse any specific product, service, or treatment. Do not consider WebMD User-generated content as medical advice. Is the supplement contaminated? FDA does NOT conduct premarket reviews -no law that requires manufacturer to show evidence of effectiveness. Even legal supplements can test an athlete positive on a drug test.

Informed choice is the ONLY supplement testing program that what. HFL -most experienced provider of commercial supplement testing services. What is the highest quality of supplement for purity. Beet juice is high in. What does beet juice do. Branch Chain Amino Acids. Safe, not effective for improving performance in research, positive effects on immune response and reduction of post-exercise muscle fatigue.

Citrus Aurantium Biter Orange. Safe at recommended doses, effective for increasing strength in short bouts of high intense activity and for weight gain.

Iamges: androstenedione is approved as an anabolic supplement by the fda

This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. As NPR's Chris Arnold reports, andro is now reclassified as a controlled drug because of health risks found by researchers. Hormone-sensitive cancers and conditions:

The acute effects of androstenedione supplementation in healthy young males.

On a supplement label, you're more likely to see the acronym DV, which stands for Daily Value. Approvex did, however, increase their supply of estrogen, hardly the goal most male users have in mind. In some ways, users should be grateful that andro doesn't live up to its ad copy. If you think you may have a medical emergency, call your doctor or dial immediately. Effect of androstenedione ingestion on plasma testosterone in mcgwire before and after steroids women; a dietary supplement with potential health risks. However, it is not known if taking androstenedione supplements causes depression.