A global leader of weight gainers
Serious weight gain requires serious calories. however, those who need the extra calories most often have the toughest time consuming enough of them. for many aspiring to be bigger, having a highly-active metabolism,
weaker appetite or an on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. with serious mass”, you’ve got nothing to lose and lots to gain. it’s time to stop thinking small: get
serious-serious mass™.
Scale up your serious mass™
About 2 heaping scoops
- 25g protein
- 630 calories
- 127g carbs
About 1 heaping scoop
- 50g protein
- 1,260 calories
- 254g carbs
Why serious mass™?
- 50g of protein to support muscle building and recovery**
- 1,260 calories to support calorie surplus for weight and muscle building**
- 254g of carbohydrate to support fueling of intense workouts and aid in replenishment of glycogen stores
- 3g of creatine monohydrate to support performance**
- Naturally Occurring Glutamine 8g, Branched Chain Amino Acids 11g and Essential Amino Acids 24g
- Good source of 22 vitamins and minerals
- Vitamins C, E, and zinc help support a healthy immune system*
- B vitamins help convert food to cellular energy*
Optimum nutrition has been trusted to provide the highest quality in post-workout recovery, pre-workout energy, and on-the-go sports nutrition for over 30 years and in 90+ countries. After careful supplier selection, each ingredient is tested to assure exceptional purity, potency and composition. We hold ourselves to the highest production standards, all so you can unlock your body’s full potential.
*When taken in addition to normal calorie intake and regular weight resistance training.
Suggested use
- 340 grams – About 2 heaping scoops serious mass™ protein powder
- 24 fl oz – Cold, water, milk or other beverage
- 30-45 – Blend until dissolved
Tips: New users may find it beneficial to begin with 1/2 of a serving for the first week and then gradually increase to 1 serving.
For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program. For best results, consume 2 scoop serving regularly over time in combination with regular resistance exercise.
Other ingredients
Maltodextrin, whey protein concentrate, natural and artificial flavor, sunflower and/or soy lecithin, red 40 lake, acesulfame potassium, sucralose.
Contains: Milk and soy.

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