Karbolyn is a clinically studied (with peer-reviewed, published research) carbohydrate supplement powder sourced from potato, rice, and corn. It’s designed for elite athletes looking for a fast, safe, and high-performance way to quickly and easily load muscles with lasting energy and for faster recovery. Carb load with Karbolyn in minutes, not hours, before your event or training session! Accept no substitutes! Absolutely nothing fuels your monster workouts like Karbolyn! It enters the bloodstream like a simple sugar, yet it still provides sustained energy without "crashing". Karbolyn is absorbed faster than dextrose, simple sugar, bread, pasta, rice, and other carbohydrate products sold in the marketplace - simple or complex. Pros worldwide use it for a reason! Do you want to Outlast, Outmuscle, and Outperform anything in your way? Then stop messing around with overhyped copycat products that would never make it past our lab. Use Karbolyn to maximize and maintain high-intensity training levels, power output, for greater muscle hardness and fullness… and pumps like you’ve never experienced before! Forget sugar-filled sports drinks that do very little to help fuel your game or workout. Karbolyn is 100% sugar-free, gluten-free, stimulant-free, and vegan-friendly. Ever use a carb powder that gels or clumps like cement? Most are shocked at how easily Karbolyn mixes and how delicious it tastes. The bottom line: Karbolyn ensures you are optimizing your glycogen stores before, during, and after training…without feeling bloated or cramping! EFX Sports is part of a very small, elite group of brands that actually make their own products. That’s why we can unquestionably guarantee Karbolyn always meets label claims and is 100% banned-substance free (certified by Informed-Sport). When you use Karbolyn by EFX Sports, you have the purest, most potent carbohydrate supplement available anywhere!

• Supports muscle building and weight gain goals
• 1,250 calories, 50g of protein, and 252g of carbs per serving
• Delivers 25 vitamins & minerals, creatine, and glutamine
• Chocolate flavor

If you’re aspiring to be bigger, have a highly active metabolism, weaker appetite, or on-the-run lifestyle, SERIOUS MASS™ by Optimum Nutrition is for you. This Chocolate weight gain powder packs 1,250 calories, 50g of protein, and 252g of carbohydrates in every serving to help boost calorie intake, support muscle building, and fuel intense workouts.

• Promotes muscle-building
• Aids in post-workout recovery
• Non-GMO
• Free of gluten, artificial sweeteners, food dyes, fillers, and preservatives
• Chocolate Glaze flavor

Mass Gainer from Transparent Labs is a whole food-based, easily digestible meal replacement and post-workout recovery shake. Built to help you pack on serious mass, this weight gainer contains 53g of grass-fed whey protein concentrate, 780 calories, 3g of pure creatine monohydrate, and 110g of slow- and fast-digesting carbohydrates from wholesome sources in every serving.

Frequently Asked Questions

Are protein shakes “good” for you?

Protein shakes can be an excellent addition to a well-rounded diet and healthy lifestyle. Research has shown that supplementing with protein can support athletic performance, post-workout recovery, weight management, muscle maintenance, and muscle growth.

Can protein shakes support weight gain?

Protein shakes may support weight gain if they contribute to a calorie surplus in your diet.

Are protein shakes "good" for women?

Supplementing with protein is as beneficial for women as it is for men in supporting muscle growth and maintenance, recovery, and performance.

How can protein supplements benefit my muscles?

Protein supplements provide the nutrients your body needs to stimulate muscle protein synthesis and support recovery post-workout.

Who Would Benefit from Taking Protein?

• Athletes and fitness enthusiasts looking to support muscle growth, muscle maintenance, performance, and post-workout recovery
• Older adults who require more protein to maintain muscle mass and overall health
• Busy professionals and students who need a quick and convenient source of protein on the go
• Anyone with increased protein needs, such as vegetarians or individuals practicing a low-carb diet

• Promotes hydration
• Supports endurance
• Aids performance
• Lemon Lime flavor

Fuel from RAW Nutrition was created to meet the unique nutritional needs of ultra-endurance athletes. This premium carbohydrate and electrolyte formula optimizes energy absorption, supports endurance and stamina, promotes hydration, and helps prevent muscle cramps and fatigue without causing stomach upset.