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Ostarine is a supplement that is mostly used to help increase muscle mass and strength. It also can protect the heart and strengthen bones. Read more below to learn about its health benefits.


Ostarine, also known as enobosarm, is a selective androgen receptor modulator (SARM). SARMs bind to steroid hormone receptors and act similarly to the steroids that bodybuilders and athletes use [R].

It is usually taken to help increase muscle mass, but it can help treat osteoporosis and prevent heart failure [R].

The Ostarine That I Recommend

Ostarine Snapshot

  • Muscle Mass9.5
  • Heart function8.5
  • Bone health9.0
  • Insulin resistance8.0


  • Increases muscle mass
  • Improves bone strength
  • Lowers cholesterol
  • Improves insulin resistance
  • Improves Heart function
  • Don’t seem to have much side effects


  • Side effects: headaches and back pain
  • Not allowed for use in professional sports

Health Benefits of Ostarine

1) Ostarine Increases Muscle Mass and Strength


In elderly men and women, enobosarm supplements increased muscle mass and physical function [R].

SARMs, especially enobosarm, have been shown to increase lean body mass as well as muscle mass in lung cancer patients [R].

Supplementation also increases muscle function with minimal side effects on other organs of the body [R].

In rats, enobosarm is quickly and completely absorbed, has high bioavailability, and can move through many pathways in the body, which makes it an ideal drug [R].

Athletes can also use Ostarine for their own benefits. Supplementation increases endurance, strength, and recovery [R].

2) Ostarine Helps Treat Osteoporosis


Osteoporosis can make bones brittle and weak, and it is a condition that affects many people. Enobosarm supplementation can help stimulate bone formation and strengthen the bones in our bodies [R].

As stated earlier, enobosarm can help increase muscle strength and muscle mass. The presence of healthy muscle tissues in the body can also help fasten bone fracture healing rates [R].

3) Ostarine Can Improve Heart Function


Cachexia can also affect heart function. Low muscle mass can increase heart problems and lead to poor function [R].

A Phase III clinical trial showed Ostarine can be used to improve muscle quality, which then results in better heart function [R].

It also reduced cholesterol levels on a dose-dependent basis [R].

4) Ostarine Improves Insulin Resistance

In postmenopausal women and elderly men, their insulin resistance lowered after they took daily doses of enobosarm. Their blood glucose levels also went down [R].  


  • Rats completely absorbed GTx-024, widely distributed it, biotransformed through several metabolic pathways, and eliminated in feces primarily as an unchanged drug [R].
  • Compared with baseline, enobosarm significantly increased total lean body mass by day 113 (enobosarm 1 mg median 1·5 kg, range -2·1 to 12·6, p=0·0012; enodosarm 3 mg 1·0 kg, -4·8 to 11·5, p=0·046) [R].
  • GTx-024 treatment resulted in dose-dependent increases in total lean body mass that were statistically significant (P < 0.001, 3 mg vs. placebo) and clinically meaningful [R].
  • There were also significant improvements in physical function (P = 0.013, 3 mg vs. placebo) and insulin resistance (P = 0.013, 3 mg vs. placebo) [R].

Caution and Side Effects

The World Anti-Doping Agency banned SARMs because they can increase physical fitness and stamina. Professional athletes should not use Ostarine if they are competing [R].

The body tolerates Ostarine well and it most likely does not generate any drug-drug interactions [R].

Common side effects include headaches and back pain [R].

Ostarine is not an FDA approved drug and it hasn’t been out long enough to know all of the potential side effects, but it’s a good sign that the research hasn’t identified anything significantly bad.

Buy Ostarine is a great source for research chemicals.  Although they don’t market to consumers, they currently don’t require that you validate that you’re a researcher.

FDA Compliance

The information on this website has not been evaluated by the Food & Drug Administration or any other medical body. We do not aim to diagnose, treat, cure or prevent any illness or disease. Information is shared for educational purposes only. You must consult your doctor before acting on any content on this website, especially if you are pregnant, nursing, taking medication, or have a medical condition.


1 Star2 Stars3 Stars4 Stars5 Stars (84 votes, average: 3.70 out of 5)


  • Nuno

    Hi, do you mind sending me some links?

  • MD

    What do you mean?

  • Scott Beck

    Nope. Not for this particular Sarm. There’s no shut down and no suppression. I can get you some links if you would like, I have a ton of saved information.

  • timor

    what about estrogen ? and testosterone production ? is that all the side Effects ?

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