Protein

Build muscle, support recovery, and fuel your fitness goals with our curated selection of protein supplements. Protein is the foundation of any serious training program, and Supplements.Men features the highest-quality protein powders, bars, and ready-to-drink shakes from brands that athletes and fitness enthusiasts trust. Whether you are bulking, cutting, or maintaining, the right protein supplement makes a measurable difference in your results.
Premium Protein for Every Goal and Dietary Need
Our protein category includes fast-absorbing whey protein isolate for post-workout recovery, slow-digesting casein protein ideal for overnight muscle repair, and versatile whey protein concentrate that balances quality with value. Plant-based athletes will find vegan protein blends made from pea, rice, and hemp sources that deliver complete amino acid profiles without dairy or animal products.
We prioritize protein supplements that use clean formulations with minimal fillers, artificial sweeteners, and unnecessary additives. Look for products with transparent nutrition labels, third-party testing certifications, and proven ingredient dosages. From classic chocolate and vanilla flavors to creative options like salted caramel and cookies and cream, there is a protein supplement here that fits your taste and your macros.
Browse our protein supplement collection below and find the fuel your muscles need.
Looking for help choosing? Read our Complete Protein Buying Guide or learn about Whey vs Plant Protein.

Frequently Asked Questions

What type of protein powder is best for muscle building?

Whey protein isolate is generally considered the gold standard for muscle building due to its fast absorption and complete amino acid profile. However, whey concentrate offers similar benefits at a lower cost. Plant-based blends combining pea and rice protein are excellent alternatives for those avoiding dairy, providing comparable muscle protein synthesis when matched for leucine content.

When should I take protein powder for the best results?

The most important factor is hitting your daily protein target, typically 0.7 to 1 gram per pound of body weight. That said, consuming protein within two hours after training can optimize muscle recovery. A morning shake can also help maintain muscle protein synthesis overnight. Spreading intake across 3 to 4 servings throughout the day maximizes absorption.

How much protein powder should I take per day?

Most people benefit from 1 to 2 scoops daily, providing 25 to 50 grams of supplemental protein. Your total protein needs depend on body weight, activity level, and goals. Whole foods should still make up the majority of your protein intake, with powder filling gaps in your diet. Athletes in intense training may need up to 1.2 grams per pound of body weight total.

Is whey protein safe for daily use?

Whey protein is one of the most studied supplements and is safe for daily use in healthy adults. It is derived from milk during cheese production and has been consumed for centuries. Those with lactose intolerance should choose whey isolate, which contains minimal lactose. If you have kidney disease, consult your doctor before significantly increasing protein intake.

What is the difference between whey isolate and whey concentrate?

Whey isolate undergoes additional filtering to remove most fat and lactose, resulting in 90 percent or higher protein content per serving. Whey concentrate typically contains 70 to 80 percent protein with slightly more fat and carbs. Isolate is better for those cutting calories or with lactose sensitivity, while concentrate offers a creamier taste and better value per gram of protein.

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