What Are the 3 Best SARMs For Cardio?

Intense cardio workouts come in many forms that are not limited to activities such as running and swimming. In fact, resistance workout and bodybuilding requires a high level of cardiovascular fitness to be able to keep up with the demands placed on the body.

In this article, we will focus on the needs of athletes who engage in high intensity cardio workouts and how they are finding support from these 3 best SARMs for cardio.

Ready, set, go!

More About SARMs

SARMs are a novel drug class that has not only transformed many bodies but has also transformed the medical and fitness industries. They are effective drugs that do the job of anabolic steroids without the dangerous consequences we have seen in the past.

Selective androgen receptor modulators or SARMs are more commonly seen for bodybuilding and increasing mass, not so much for cardio training. It is a kept secret that is now starting to gain momentum.

These effective drugs help athletes increase their levels of stamina and endurance, which are essential to complete and recover from intense cardio training. People are able to challenge themselves at higher levels and thus increase their ability to increase their fitness status.

The following, are the 3 best SARMs for cardio that athletes use to take their cardio training to new heights.

#1: MK-677 (Ibutamoren)

MK-677 is not technically a SARM, but for practical purposes, it is grouped in this drug class. It is a selective growth hormone secretagogue and non-peptide agonist of the ghrelin receptor that increases the levels of growth hormone.

In the fitness world, MK-677 not only builds and retains muscle but also enhances the cardiovascular ability and endurance of athletes.


MK-677 was originally developed by Merck & Co. but is now being researched by Lumos Pharma with the intention of providing children a chance to reach a balanced hormonal profile by treating growth hormone deficiencies.


When it comes to cardio training, MK-677 increases the level of endurance. The drug works to increase the growth rate of lean muscle mass and speeds up recovery from injuries and exhaustion.

Possible Side Effects

Not all people experience side effects while on Ibutamoren, in fact, it is rare to experience any.

Mild symptoms you may see include:

  • Increased appetite
  • Water retention and bloating
  • Tingling in the fingers
  • Intense dreams

Dosage Guidelines

Most people looking to enhance their cardio performance do well with 10 mg per day. Experienced SARMs users that have built a tolerance and require more stimulation may increase incrementally to 25 mg per day until finally reaching 50 mg per day if absolutely necessary.

#2: MK-2866 (Ostarine)

Another great SARM for cardio is MK-2866, also called Enobosarm. It was created to treat medical conditions such as osteoporosis and muscle wasting. It has come a long way in the fitness industry because it allows athletes to reach high levels of intensity during their workouts.


MK-2866 was designed by GTx, an established pharmaceutical company responsible for bringing many successful drugs to market. Its beginnings happened in a science lab where researchers from Ohio State University and the University of Tennessee came together for its development.

So far, MK-2866 has a vast number of clinical trials that have proven its safety and effectiveness. It is still working on passing its phase III trials so that it gets one step closer to becoming used in the mainstream as an FDA-approved drug.


Athletes seeking to enhance their cardio performance find MK-2866 effective for increasing their stamina and endurance, as well as giving them a boost of energy, increasing lean muscle mass, improving bone density, and increasing overall body strength.

With the help of this powerful compound, cardio training becomes longer and more intense while the recovery period becomes shorter and more complete. Athletes are able to break new personal records and engage in activities they could not do before.

Side Effects

Many of the side effects of MK-2866 can be avoided by doing a proper Post Cycle Therapy (PCT) afterward. This prevents the decrease in the production of testosterone.

Some people rarely experience these side effects:

  • Liver dysfunction
  • Heart attacks
  • Stroke
  • Nausea
  • Abnormal heart rate
  • Trouble sleeping

Dosage Guidelines

For intense cardio training, it is recommended to start at 1 mg per day. It doesn’t take much for this potent drug to work. Starting at a minimal dose gives you the opportunity to see how your body reacts after only 1 mg per day.

This is a very valuable step that requires your patience but is absolutely worth it. The lowest the dose at which you begin, the fewer side effects you’ll experience. Once you take the drug for a cycle of six to eight weeks, you can reassess your condition and gradually increase the dose if you feel it is necessary.

Most people do well with 1-5 mg per day, however, some report getting results at 12 mg per day, and at a maximum of 20 mg per day.

#3: LGD-4033 (Ligandrol)

One of the most potent and effective SARMs on the market is LGD-4033. It provides some of the best results for intense cardio training. Endurance and stamina are greatly increased as well as the rate at which the body recovers and is able to return to the next workout.

Commonly used for bulking in bodybuilding, it has surprisingly become one of the preferred supplements for cardio training.


In its early days, LGD-4033 belonged to Ligand Pharmaceuticals who originally developed it. Now, it is being researched by Viking Therapeutics who is taking it under many clinical trials for conditions such as cancer of the prostate and breasts.


The rapid rate of muscular development is LGD-4033’s main benefit. In addition, it is popular for its effects on fast fat-burning. These combine to produce a higher performance that is fueled by high levels of endurance and stamina.

Side Effects

Fortunately, LGD-4033 is effective without major side effects. Some people experience mild symptoms including headaches, aggression, nausea, lethargy, and muscular cramps.

Dosage Guidelines

LGD-4033 is an effective drug that requires a 12-week cycle for its effectiveness. Most people find 20 mg per day to be a good level for maintenance. In the beginning, especially if you haven’t taken SARMs before, you may start a 6-week cycle at 5 mg per day.

You will quickly notice changes and will be able to know if you should gradually increase the dosage to 10 mg per day for a maximum of 20 mg. It is possible that you’ll get the desired results with only 5 mg per day.

Do I Really Need Supplements For Cardio?

Yes, of course! Cardio training puts a tremendous amount of stress on the body. It requires you to have muscular and cardiovascular fitness to keep up with its demands. You have to keep in mind, however, that intense cardio training refers to advanced workouts, not your brief daily jog around the block.

If you take supplements, it is to have support during athletic feats, not to simply stimulate your body to increase your fitness level while not engaging in intense physical activity.

Serious athletes cannot find support from nutrition alone, they need an extra boost to help their bodies recover from workouts and maintain a top fitness level. You will see athletes such as cyclists, runners, and swimmers benefit greatly from taking SARMs. MK-677, MK-2866, and LGD-4033 are certainly the 3 best SARMs for cardio!

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