The Animal M-Stak - Muscle Builder and Anabolic Mass Gainer from Animal is engineered to deliver results you can feel.
When regular meals aren't cutting it for your calorie surplus, this steps in.
Animal's high-calorie mass gainer formulated for athletes looking to increase size and strength.
Manufactured in a cGMP-certified facility, ensuring consistent quality and safety standards.
Formulated to help sustain energy levels throughout your day or workout.
Uses animal-derived protein sources for a complete amino acid profile.
Strikes a good balance between quality ingredients and reasonable pricing.
Typically ranges from $40–$47 — a competitive price point for the US market.
A well-rounded offering from Animal that checks the right boxes for most users.
The brand behind this product — their story and what they stand for.
Hardcore bodybuilding supplement line from Universal Nutrition. Iconic Animal Pak is a staple for serious lifters.
Understand which fitness goals this product is best suited for.
Energy & Performance
Designed to fuel intense workouts and sustain energy levels throughout your training session.
Fat Loss
Helps maintain lean muscle during a caloric deficit. Pair with a structured workout and nutrition plan.
Muscle Gain
Supports muscle growth and recovery when combined with resistance training and a protein-rich diet.
Track how the price has changed over the last 90 days on Amazon.com.
Step-by-step usage instructions so you get the most out of every serving.
Mix 1–2 scoops with 300–400ml of milk for a calorie-dense shake.
Consume between meals or post-workout to hit your caloric surplus.
Start with 1 scoop to assess tolerance before moving to the full serving.
Track your total daily calories. A mass gainer works best when it fills a genuine calorie gap — not as a meal replacement.
See how this product compares to similar options in its category.
| This Product | Optimum Nutrition | EPN Supplements | Thalacy | |
|---|---|---|---|---|
| Price | $43.94 | $94.40 | $39.99 | $33.99 |
| Per Serving | - | - | - | - |
| Servings | — | — | — | — |
| Lab Tested | ✓ | ✓ | ✗ | ✗ |
| Rating | 4.5 ★ | 4.6 ★ | 4.6 ★ | 4.4 ★ |
Common questions about this product — answered clearly and honestly.
This product is Non-Veg. It may contain animal-derived ingredients — check the label for specifics.
Yes, this product has been lab tested by cGMP. Third-party lab testing verifies that the product contains what the label claims, giving you confidence in its quality and purity.
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