Struggling to Bulk Up? These 7 Best Clean Mass Gainers Help!

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Not all weight gainers are created equal. Regular mass gainers often have low-quality ingredients, tons of sugar, and cheap fillers. Clean mass gainers, on the other hand, are built differently. They focus on high-quality proteins, complex carbohydrates, and healthy fats to support lean muscle growth.

The biggest benefit? You get the extra calories needed for bulking without storing unnecessary fat. A good, clean mass gainer gives you a balanced macronutrient profile with minimal artificial additives. It is the way to go if you’re serious about gaining muscle while keeping your body fat in check.

Key Ingredients to Look for in Clean Mass Gainers​

A solid, clean mass gainer should have the right mix of macronutrients and performance-enhancing ingredients. Here’s what to look for:

• Protein Sources: High-quality proteins, such as whey isolate, whey concentrate, casein, and plant-based proteins (for vegan warriors), are key for muscle growth and recovery.
• Carbohydrates: Choose complex carbohydrates like oats, sweet potato powder, and quinoa. These provide long-lasting energy and support muscle glycogen stores without spiking blood sugar.
• Healthy Fats: MCT oil, avocado oil, and flaxseed provide sustained energy and hormone support for muscle-building.
• Additional Ingredients: Digestive enzymes help absorption, fiber keeps digestion smooth, and vitamins and minerals support overall performance and recovery.

The Best Clean Mass Gainers to Help You Bulk Up​

Transparent Labs Mass Gainer​

This mass gainer is my go-to for a clean and effective mass gainer. With 53g of protein, complex carbs from oat flour, and coconut milk powder for healthy fats, this one fuels lean muscle growth without excess sugar. It also has digestive enzymes to keep everything running smoothly.

Optimum Nutrition Gold Pro Gainer​

One of the most trusted names in the game, Optimum Nutrition delivers a mass gainer with 60g of protein per serving and only 8g of sugar. The carb-to-protein ratio is solid for lean bulking, and the taste is top-tier.

Naked Mass​

For those who like simplicity, Naked Mass has only three ingredients: whey protein, casein, and organic maltodextrin. There are no additives or junk—just clean calories to fuel growth.

Kaged Clean Meal​

This mass gainer is the choice if you’re looking for an ultra-clean meal-replacement-style gainer. It packs 28g of protein from whey isolate, pea protein, quinoa, and coconut milk for carbohydrates and fats. It's great for those who want a lean bulk without digestive issues.

Orgain Organic Protein & Superfoods​

For my vegan lifters, this one’s a powerhouse. It combines pea, brown rice, and chia seed protein with organic carbs from ancient grains. It’s also packed with superfoods for added health benefits.

Mutant Mass Extreme Clean Gainer​

Struggling to gain weight with a fast metabolism? Mutant Mass Extreme packs 1,100 calories per serving, offering a balanced protein-to-carb ratio to fuel your gains. It’s clean enough for lean gains but heavy enough for serious mass building.

BSN True Mass 1200​

This one is great for athletes seeking a balanced protein-to-carb mix for muscle recovery. With 50g of protein and 215g of carbs per serving, it fuels workouts and helps pack on lean size.

How to Use Clean Mass Gainers Effectively​

Timing is key. Take your mass gainer post-workout for the best results when your muscles prime for growth. You can also drink it between meals to ensure you hit your calorie and protein targets without stuffing yourself with solid food all day.

Don’t rely solely on mass gainers—use them to supplement your diet, not replace real food. Combine them with a structured workout program focused on progressive overload, and you’ll see real gains.

Clean Mass Gainers vs. Traditional Weight Gainers​

Traditional weight gainers have high-calorie fillers, cheap sugars, and excessive fats. While they may help you gain weight quickly, much of that will be fat. Clean mass gainers, on the other hand, provide quality calories designed for lean muscle growth.

If you’re an athlete looking for a clean bulk without getting sloppy, stick with clean mass gainers. Traditional weight gainers may work for extremely hard gainers, but they often come with bloating, sugar crashes, and unnecessary fat gain.

Frequently Asked Questions​

Can I take a clean mass gainer if I’m trying to stay lean?

Yes! Clean mass gainers help you build muscle without excessive fat gain. Just monitor your overall calorie intake to stay within your goals.

How often should I take a mass gainer?

It depends on your calorie needs. Most people benefit from one serving post-workout or between meals, but you can take two servings daily if you’re struggling to gain weight.

Are clean mass gainers good for beginners?

Absolutely. Beginners often struggle to eat enough calories for growth and clean mass gainers make it easier to hit daily targets without relying on junk food.