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Muscle building support, post-workout recovery, protein synthesis support, weight and mass gain
Adults with high-calorie needs for mass gain and active individuals seeking convenient post-workout protein and carbs.
Mix 1 serving (6 scoops) with 18–24 oz of water, milk, or a preferred beverage and blend or shake for 30–45 seconds; take 1–3 times daily between meals, 30–45 minutes after workouts, and before bed. Large servings may be easier to tolerate when split into smaller portions, and taking with milk can increase total calories and protein.
Gluten Free. Contains: Milk, Soy.
Provides essential amino acids, including high leucine content, which may stimulate muscle protein synthesis after exercise.
Caution: Contains milk proteins; avoid if you have a milk allergy or are sensitive to dairy.
Serves as a conditionally essential amino acid used by muscle and gut cells, which may help replenish amino acid pools after strenuous activity.
Caution: High intakes may cause stomach discomfort in some people; reduce dose if you experience bloating.
Supply leucine, isoleucine, and valine that are directly used by muscle tissue and may signal pathways involved in muscle protein building.
Caution: Excessive amino acid intake without adequate hydration may cause GI upset; drink water with use.
Provides rapidly digestible carbohydrates that may replenish muscle glycogen and increase total calorie intake for mass gain.
Caution: High carbohydrate loads may spike blood sugar and cause digestive discomfort; consider splitting servings if sensitive.
Acts as a soluble fiber fermented by gut bacteria, which may support digestive regularity and beneficial microbiota.
Caution: Inulin can cause gas or bloating in sensitive individuals, especially at higher amounts.
Whey protein and naturally occurring BCAAs, especially leucine, provide the amino acids and signal needed for muscle protein building, while glutamine helps replenish amino acid pools used during intense training. Maltodextrin supplies quick carbohydrates to support glycogen repletion and higher calorie intake, and inulin adds a small amount of fiber to help with tolerance of a calorie-dense shake.
Label Warning: Consult a physician before use if you have any pre-existing medical conditions, take medications, plan a medical procedure, are contemplating pregnancy, are pregnant, or are nursing.
Who should be cautious: People with milk or soy allergies should avoid this product due to milk and soy ingredients. Those monitoring sodium, cholesterol, or carbohydrate intake may want to review the nutrition facts. If you have diabetes or are managing blood sugar, high carbohydrate content may affect your plan; discuss with a healthcare provider before use.
Many users like the flavor and say it blends easily into shakes or smoothies.
Customers often mention noticeable support for weight gain and post-workout recovery.
A few users find the taste underwhelming or the shake too thick.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Creatine may enhance muscle growth and strength, complementing mass gainers for effective muscle building.
AI generated. Not medical advice.
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When Combined with Regular Training, Stacked Protein® Gainer is Engineered to Support:
Stacked Protein® Gainer Stats:
| Servings | 1 Serving | 2 Servings | 3 Servings |
| Mixed In | Water | Water | Water |
| Calories | 1240 | 2480 | 3720 |
| Protein | 50 g | 100 g | 150 g |
| Carbohydrates | 250 g | 500 g | 750 g |
| Fat | 4.5 g | 9 g | 13.5 g |
¹Naturally Occurring
²Not a low calorie food
³Naturally Occurring and Added
Stir or shake it: Just add 1 serving to water, milk or your favorite beverage.
Blend it: Make your smoothies even healthier with 1 serving along with your ingredients.
Mix it: Add it to yogurt, cereal, oatmeal or any of your favorite foods.
Use 1 serving (6 scoops) 1-3 times daily as part of a well-balanced diet that includes whole foods and other protein sources. Take between meals, 30-45 minutes post-workout, and before bed.
Add 6 scoops of Stacked Protein® Gainer to 18-24 oz of your favorite liquid such as water, skim milk or unsweetened almond milk. Blend or shake in a cup for 30-45 seconds until protein powder fully dissolves.
Maltodextrin, instantized whey protein concentrate, instantized whey protein isolate, fermented l-glutamine, organic agave inulin, sunflower oil creamer [sunflower oil, maltodextrin, sodium caseinate (a milk derivative), contains 2% or less of each of the following: mono & diglycerides, natural tocopherols, and tri-calcium phosphate (flow agent)], natural and artificial flavor, gum blend (cellulose gum, xanthan gum, carrageenan), salt, sucralose, proteases (as Aminogen® advanced).
Contains: Milk and soy
This product is made in the USA with domestic and international ingredients in a (GMP) registered facility.
Consult your physician before using this product if you have any pre-existing medical condition(s), are taking any medication, planning any medical procedure, contemplating pregnancy, are pregnant or nursing. Keep out of reach of children and pets.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: Approximately 6 Scoops (327 g) | ||
| Servings Per Container: 8 | ||
| Amount Per Serving | % Daily Value* | |
| Calories | 1,240 | |
| Total Fat | 4.5 g | 6% |
| Saturated Fat | 2 g | 10% |
| Trans Fat | 0 g | |
| Cholesterol | 175 mg | 58% |
| Sodium | 540 mg | 23% |
| Total Carbohydrate | 250 g | 91% |
| Dietary Fiber | less than 1 g | 3% |
| Total Sugars | 13 g | |
| Includes 0 g Added Sugars | 0% | |
| Protein | 50 g | |
| Vitamin D | 0 mcg | 0% |
| Calcium | 310 mg | 25% |
| Iron | 0.3 mg | 2% |
| Potassium | 320 mg | 6% |
| *The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. | ||
