Here’s a breakdown of Nutrabolics Mass Fusion Gainer 5 kg+ — what it is, nutrition facts, benefits, usage, and what to watch out for.



Nutrabolics Mass Fusion is a high-calorie “mass-gainer” powder supplement — aimed at people who want to bulk up, gain weight and build muscle mass, especially if they struggle to eat enough calories or have a fast metabolism (“hard-gainers”).
The product “5.44 kg / ~5 kg+ tub” version is common and sold by many retailers.
According to the label (one typical serving = 4 scoops, ~ 249 g) of Mass Fusion:
| Nutrient / Component | Per Serving (≈ 249 g) |
|---|---|
| Calories | ~ 950 kcal |
| Protein | ~ 50 g (multi-phase protein blend: whey concentrate, hydrolyzed whey, micellar casein) |
| Carbohydrates | ~ 175–177 g (complex carbs from sweet potato, quinoa, maltodextrin / waxy maize) |
| Sugars | ~ 10 g |
| Fat (total) | ~ 3.5–5 g (includes healthy fats like MCT oil) |
| Fibers & Others | ~ 5 g fiber (some versions) + added micronutrients depending on batch. |
What this means: Each serving of Mass Fusion delivers very high calories + quality protein + complex carbs + healthy fats — making it a “calorie-dense” shake designed to support muscle mass gain and weight increase when used appropriately.
Nutrabolics positions Mass Fusion for:
People with fast metabolism or difficulty gaining weight — to help reach a caloric surplus needed for muscle growth.
Delivering multi-phase proteins — meaning some proteins digest quickly, others slowly — helping with muscle recovery and sustained amino-acid release.
Supplying complex carbohydrates + healthy fats (MCT) — to provide sustained energy, support glycogen replenishment after workouts, and help with overall calorie intake.
Making it easier to meet high daily calorie / macronutrient needs — often difficult to reach with regular meals only, especially for “hard gainers.”
Many retailers in Egypt sell it (or variants), meaning it's accessible locally — often marketed to gym-goers aiming for “bulk” or “mass gain.”
Based on retailer recommendations for Egypt:
Mix ≈ 4 scoops (≈ 249 g) with about 500–600 ml water or milk, shake or blend well until smooth.
Use 1 serving daily — often after workout, or between meals, depending on your calorie/protein goals.
Because it's calorie-dense, many users tailor servings depending on their diet: some might split a serving across the day, or use half-serving if a full serving is too heavy.
Because each serving delivers ~ 950 kcal, it's easy to overshoot daily calorie needs if you don’t balance it with training or watch total food intake — which may lead to fat gain instead of lean muscle.
A large serving (249 g powder + water/milk) is quite heavy — might be tough on digestion or appetite, especially if you’re not used to big shakes.
As with any supplement — it does not replace a balanced diet (whole foods, vegetables, healthy fats, fiber, micronutrients). Using only a gainer may neglect overall nutrition balance.
If you have health conditions (e.g. metabolic, digestive, kidney issues), or are lactose-/dairy-sensitive — caution advised (product contains dairy, soy, etc.).
“Hard-gainers” trying to bulk up, gain weight or build muscle.
Individuals with heavy training load (strength training, bodybuilding) needing high calorie intake.
People who struggle to eat enough through regular meals — using gainer as supplemental calories.
Those seeking lean muscle with minimal fat gain — a more moderate diet + standard whey or balanced meals might be better.
People with sensitive digestion or who dislike heavy shakes.
When total calorie intake is already high — risk of excessive fat gain if not balanced with energy expenditure.