
RAD 140, also known as Testolone, is one of the most popular SARMs (Selective Androgen Receptor Modulators) used by bodybuilders and fitness enthusiasts for muscle growth and strength gains. Despite its reputation as a “dry” compound, there’s ongoing debate about whether RAD 140 causes water retention or bloating.
Some users report feeling puffier while on a RAD 140 cycle, leading to concerns about water retention. But is this really water weight, or is there another explanation? This article explores the science behind RAD 140’s effects, separating facts from myths and offering practical solutions.
What is RAD 140 and How Does It Work?
Definition and Mechanism of Action
RAD 140 is a SARM that selectively binds to androgen receptors in muscle and bone tissue. Unlike anabolic steroids, it doesn’t convert to estrogen (aromatization), making it a popular choice for those looking to gain lean muscle without excessive water retention.
Key Benefits of RAD 140
- Rapid lean muscle gains – helps increase muscle size and strength without significant fat gain.
- Enhanced recovery – speeds up muscle repair after intense workouts.
- Minimal water retention – unlike anabolic steroids, RAD 140 does not directly increase estrogen levels.
Does RAD 140 Cause Water Retention?
Scientific Perspective
The primary cause of water retention in anabolic compounds is aromatization, where testosterone converts into estrogen, leading to excess fluid retention. RAD 140 does not aromatize, meaning it does not directly cause water retention like steroids or prohormones.
However, RAD 140 can increase glycogen storage in muscles, which can cause a temporary increase in weight and muscle fullness. This is often mistaken for water retention but is actually a sign of increased muscle hydration rather than bloating.
User Reports
- Most users experience a dry, hardened muscle look rather than bloating.
- Rare cases of bloating are often linked to diet (high sodium intake) or counterfeit products.
What Causes Water Retention During SARMs Cycles?
Aromatization (Not an Issue for RAD 140)
Compounds that convert to estrogen cause bloating. Since RAD 140 does not aromatize, estrogen-related water retention is not a concern.
Glycogen Storage
RAD 140 can enhance glycogen uptake in muscles. Each gram of glycogen holds approximately 3 grams of water, making muscles appear fuller. This is not the same as bloating, as it does not cause extracellular water retention.
Dietary Factors
- High Sodium Intake – Excess sodium causes the body to retain more water.
- Inadequate Hydration – Dehydration can lead to water retention as the body tries to hold onto fluids.
- Carbohydrate Intake – More carbs lead to higher glycogen storage, which may temporarily increase weight.

How to Minimize Water Retention While Using RAD 140
Diet Adjustments
- Reduce sodium-rich foods like processed meals and fast food.
- Lower dairy intake if bloating is an issue.
Hydration
- Drink plenty of water to prevent fluid imbalances.
- Electrolyte balance is key—ensure adequate potassium and magnesium intake.
Monitor Glycogen Levels
- Understand that glycogen storage is not bloating and is actually beneficial for muscle growth.
Use Natural Diuretics If Needed
- Dandelion root and green tea extract can help manage excess fluid retention.
RAD 140 vs Other SARMs in Terms of Water Retention
Feature | RAD 140 (Testolone) | LGD-4033 (Ligandrol) | Ostarine (MK-2866) |
---|---|---|---|
Aromatization Risk | None | Moderate | None |
Glycogen Storage | Increased | Significant | Mild |
Likelihood of Bloating | Low | High | Low |
Common Misconceptions About RAD 140 and Water Retention
1. “RAD 140 Causes Puffy Muscles”
This is often due to glycogen storage, not actual water retention.
2. “All SARMs Cause Bloating”
SARMs have different mechanisms of action. RAD 140 is one of the driest SARMs, unlike LGD-4033, which is more likely to cause bloating.
3. “Water Retention Means Poor Results”
Increased glycogen storage supports better muscle pumps, endurance, and recovery—all of which enhance performance and aesthetics.
Conclusion
- RAD 140 does not cause true water retention since it does not convert to estrogen.
- Any perceived bloating is usually due to increased glycogen storage, sodium intake, or hydration issues.
- To minimize water retention, maintain a clean diet, drink enough water, and monitor glycogen-related fullness.
By understanding how RAD 140 works, users can make informed decisions and maximize muscle gains without unnecessary concerns about bloating.

Hi, I'm Dave Moffat the founder and Chief Editor of steroidsourcetalk.com and certified International Personal Trainer and Certified Nutritionist. My passion has always been bodybuilding but with 15 years' experience in weight loss programs too, it's hard not to mention all that when you're working at your fitness level fullest (I hope). When Im not in the gym or spending time away from my family i often think about what advice would help others achieve theirs goals just like these inspired mine.