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Yohimbe for Sports & Fitness

Yohimbe
Yohimbe: Main Image© Martin Wall

How Much Is Usually Taken by Athletes?

The ability of yohimbine, a chemical found in yohimbe bark, to stimulate the nervous system,1, 2 promote the release of fat from fat cells,3, 4 and affect the cardiovascular system has led to claims that yohimbe might help athletic performance or improve body composition.5 However, a double-blind study of men who were not dieting reported no effect of up to 43 mg per day of yohimbine on weight or body composition after six months.6 No research has tested yohimbe herb for effects on body composition, and no human research has investigated the ability of yohimbine or yohimbe to affect athletic performance. Other studies have determined that a safe daily amount of yohimbine is 15 to 30 mg.7 However, people with kidney disorders should not take yohimbe, and side effects of nausea, dizziness, or nervousness may occur that necessitate reducing or stopping yohimbe supplementation.

Side Effects

Patients with kidney disease, peptic ulcer or pregnant or breast-feeding women should not use yohimbe.8 Standard amounts may occasionally cause dizziness, nausea, insomnia, anxiety, increased blood pressure, and rapid heart beat,9 though all of these are rare.10 Using more than 40 mg of yohimbine per day can cause dangerous side effects, including loss of muscle function, chills, and vertigo. Some people will also experience hallucinations when taking higher amounts of yohimbine.11 Taking 200 mg yohimbine in one case led to only a brief episode of hypertension, palpitations, and anxiety.12 People with post-traumatic stress disorder13 and panic disorder14 should avoid yohimbe as it may worsen their condition.

Interactions with Supplements, Foods, & Other Compounds

Foods with high amounts of tyramine (such as cheese, red wine, and liver) should not be eaten while a person is taking yohimbe, as they may theoretically cause severe high blood pressure and other problems. Similarly, yohimbe should only be combined with other antidepressant drugs under the supervision of a physician, though at least one study suggests it may benefit those who are not responding to serotonin reuptake inhibitors such as fluoxetine (Prozac).15

Interactions with Medicines

Certain medicines interact with this supplement.

Types of interactions:beneficial= Beneficialadverse= Adversecheck= Check
dnicon_BeneficialReplenish Depleted Nutrients

none

dnicon_BeneficialReduce Side Effects

none

dnicon_BeneficialSupport Medicine
dnicon_AvoidReduces Effectiveness
dnicon_AvoidPotential Negative Interaction

none

dnicon_CheckExplanation Required

none

Copyright 2014 Aisle7. All rights reserved. Aisle7.com

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Learn more about the authors of Aisle7 products.

The information presented in Aisle7 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. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. 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 June 2015.

 
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