GNC AMP Mass XXX vs Optimum Serious Mass

GNC AMP Mass XXX and Optimum Nutrition Serious Mass both aim to support significant muscle mass gains but cater to different user needs. GNC AMP Mass XXX provides 50g of protein per serving, a mix of fast and slow-digesting proteins, 130g of carbs, and additional ingredients like creatine and HMB for enhanced muscle maintenance and recovery. Optimum Nutrition Serious Mass offers 50g of protein and a high 250g of carbs per serving, along with a comprehensive blend of vitamins and minerals, making it a more complete nutritional option.

Optimum Nutrition Serious Mass is our pick due to its extensive vitamin and mineral content, which provides additional nutritional benefits. The high carbohydrate content supports those needing a significant caloric intake for weight gain, making it ideal for individuals looking to maximize their mass-gaining efforts effectively. The added vitamins and minerals further enhance its appeal, providing a more well-rounded supplement.

For more detailed reviews, you can visit GNC AMP Mass XXX and Optimum Nutrition Serious Mass.