In This Review
Overview of Crazy Nutrition Mass Gainer
Many people struggle to gain muscle and weight, even with strict diets and intense workouts. Challenges such as insufficient calories, slow recovery, and poor nutrient absorption often prevent people from achieving their fitness goals.
For hardgainers and skinny guys with fast metabolisms, the frustration runs even deeper, since no amount of eating seems to translate into real size. This is where Crazy Nutrition Mass Gainer steps in.
Designed for bulking, it offers a clean, science-backed approach to gaining size without the usual digestive issues that come with cheaper formulas. For anyone tired of slow progress and stalled gains, it could be the missing piece in the routine. Here’s a closer look at crazy nutrition mass gainer review, how it works and what makes it stand out.
What is Crazy Nutrition Mass Gainer?
Mass Gainer by Crazy Nutrition is a muscle-building supplement designed for people looking to gain size and weight. It is packed with calories, quality proteins, and supportive nutrients that work together to help users add lean muscle steadily over time.
Along with solid nutrition, the brand also focused on taste, offering Crazy Nutrition Mass Gainer in two flavors: chocolate and vanilla, both smooth and easy to mix.
This mass gainer protein powder also supports better energy levels, strength, and post-workout recovery, helping users stay consistent with their training. The product is suitable for all types of athletes, including gym-goers, track runners, CrossFit athletes, and those focused on resistance training.
How Does Crazy Nutrition Mass Gainer Rate?
Brand Highlights
- A sports nutrition brand focused on clean, whole-food-based formulas for athletes.
- Backed by a 60-day money-back guarantee on every order.
- Ships internationally to the US, UK and Canada.
- Uses safe, encrypted payment processing for every transaction.
- Offers a Subscribe & Save program with discounted pricing.
- Builds products free from low-quality fillers.
Key Ingredients
- Whey protein blend
- Creatine monohydrate
- Oat flour
- ASTRAGIN®
- DigeZyme®
- Low in natural sugars.
- Gluten-free formula.
- Works great as a meal replacement.
- Mixes easily and tastes delicious.
- One-of-a-kind formula with patented ingredients.
- Added digestive enzymes for zero bloating.
- No auto-bill enrollment unless you choose to subscribe.
- Not suitable for those with dairy allergies.
- Available only on the official website.
About The Brand
Crazy Nutrition is the company behind MASS GAINER, a sports nutrition brand focused on creating clean, effective supplements for athletes, bodybuilders, and fitness-conscious individuals. The brand has built its reputation on producing high-quality formulas without unnecessary ingredients, using whole-food sourced components, and avoiding cheap fillers.
Each product is developed with science-backed, patented compounds such as DigeZyme® and AstraGin®, included to support nutrient absorption and digestive comfort. The brand offers international shipping across the US, the UK, and Canada, with safe, encrypted payment processing on every order.
Crazy Nutrition stands behind every product with a 60-day money-back guarantee, reflecting its commitment to transparency, ingredient quality, and delivering supplements that produce real, noticeable results.
How Does Crazy Nutrition Mass Gainer Work?
Crazy Nutrition Mass Gainer supports muscle growth and recovery by delivering a high-calorie, protein-rich formula in every serving. It gives the body the fuel it needs to build muscle, gain strength, and recover faster after workouts.
The formula includes DigeZyme, a digestive enzyme blend that supports nutrient absorption and reduces bloating. A study in Current Drug Metabolism found that digestive enzymes help break down proteins, carbohydrates, and lipids for easier digestion.
It also features AstraGin, a patented compound shown to enhance nutrient absorption. Oat flour provides slow-releasing complex carbohydrates for sustained energy, while the whey and milk protein blend delivers 40 grams of quality protein per serving, supporting energy and recovery during intense training.
Crazy Nutrition Mass Gainer Ingredients – Are they Safe & Effective?

Whey protein blend
This whey protein blend comprises of whey protein isolate and whey protein concentrate.
In a double-blind crossover study published in the Nutrients journal, whey protein was found to improve body protein metabolism and performance recovery after resistance training.

Creatine monohydrate
Creatine monohydrate is an essential ingredient in the best mass gainer proteins. It is claimed to improve muscle performance in high-resistance exercises.
Creatine supplementation is known to have ergogenic effects. In a 4-week study by the Nutrients journal, subjects were supplemented with creatine and asked to take part in complex trainings. Subjects recorded improved maximal muscular strength and reduced muscle damage during training.

Oat flour
Oat flour is claimed to be effective in muscle growth and energy replacement in depleted energy reserves.
A review in the Journal of Food Science and Technology provides that oat is a low cost protein source with high protein content of about 11 to 15%. According to the review, oat is beneficial for gluten allergy, lowering cholesterol, and cancerous activity.

ASTRAGIN®
This ingredient is a combination of Astragalus membranaceus and the root extracts of Panax notoginseng.
In a research study in the Molecules journal, Astragalus membranaceus, (an herb used in traditional Chinese medicine) was found to increase endurance exercise capacity when combined with exercise training. It also reduced accumulation of blood lactate and ammonia, proving that it has anti-fatigue effects.

DigeZyme®
This is an enzyme complex comprising of digestive enzymes such as amylase, cellulase, lactase, protease, and lipase. As we explain in our High Impact Plant Protein Reviews, It is specifically designed to aid in the digestion and absorption of nutrients from the foods we consume. By breaking down carbohydrates, proteins, fats, and fibres into smaller, easily digestible components, it helps alleviate digestive discomfort and bloating.
Studies in the Current Drug Metabolism journal provide that digestive enzymes break down proteins, carbohydrates, and lipids. In doing so, these enzymes may help manage digestive disorders, lactose intolerance, and cystic fibrosis.
How To Use Crazy Nutrition Mass Gainer?
Crazy nutrition mass gainer dosage is simple and flexible. Add 4 scoops of the powder to 300ml or 500ml of water, then shake or blend until smooth and enjoy. The shake can be taken any time of the day, whether for breakfast, lunch, dinner, or as a complete meal replacement when extra calories are needed.
For best results, use it consistently every day alongside a regular training routine. Avoid mixing with hot liquids, since high heat can affect the digestive enzymes. Store the bag in a cool, dry place away from direct sunlight to maintain freshness and effectiveness.
How Does Crazy Nutrition Mass Gainer Rate?
| Feature | Rating | Comment |
|---|---|---|
| Performance | 9 / 10 | Mass Gainer contains lots of calories and proteins (from whole-food sources) that can improve muscle gain, strength, and energy levels. |
| Safety | 9 / 10 | This mass gainer supplement contains digestive enzymes that improve digestion and relieve stomach issues. However, it contains milk thus may cause allergies. It is also not a vegan mass gainer. |
| Use | 9 / 10 | Crazy Nutrition Mass Gainer is suitable for all types of athletes. |
| Preservatives | 9 / 10 | All natural formula, no synthetic preservatives and fillers |
Benefits of Crazy Nutrition Mass Gainer
- Increased Muscle Mass and Weight Gain: Packed with a high-calorie blend of quality proteins and complex carbohydrates that support steady muscle growth and strength gains.
- Faster Muscle Recovery: Contains key nutrients like B vitamins, zinc, magnesium, and DigeZyme, which support muscle recovery and help reduce rest time between intense training sessions.
- Sustained Energy Levels: B vitamins and MCT oil work together to deliver lasting energy and steady focus throughout the day, supporting performance during workouts.
- Better Digestion and Nutrient Absorption: The added DigeZyme enzyme blend supports smoother digestion and improves nutrient uptake from each serving, helping reduce bloating and stomach discomfort.
- Cleaner Bulking Without the Bloat: Built with whole-food sourced ingredients and free from cheap fillers, making it easier on the stomach compared to many other mass gainers on the market.
Side Effects of Crazy Nutrition Mass Gainer
Crazy Nutrition Mass Gainer is generally safe if used according to the instructions, but there may be minor side effects for some users, especially during the beginning stages, including digestive discomfort, bloating, or increased thirst. These effects should be minimal and are expected to wear off as the body gets accustomed.
Serving size must be followed in order not to overconsume unnecessary calories or develop digestive issues. People with a dairy allergy or intolerance should check the ingredient list closely and consult with a healthcare professional if necessary.
Safety of Crazy Nutrition Mass Gainer
Crazy Nutrition’s MASS GAINER is made with natural, non-GMO, and gluten-free ingredients, and the brand states it is entirely safe with no known side effects. The formula is also soy-free, supporting wider dietary needs. Like most dietary supplements in the U.S., it has not been evaluated by the FDA, but the brand follows safe production standards and uses encrypted, secure payment processing for every order.
Pregnant or nursing women, people on medication, and those with existing health conditions should consult a healthcare provider before use. The brand also recommends consulting a physician before giving the product to children.
How Effective Crazy Nutrition Mass Gainer Is?
Crazy Nutrition Mass Gainer is very effective for those who want to gain muscle and weight. Its protein-rich formula, with a whey protein blend, provides the essential nutrients needed to fuel muscle growth and recovery. Ingredients like creatine monohydrate boost strength and performance during resistance training, while digestive enzymes such as DigeZyme® enhance nutrient absorption and prevent bloating, making it easier for the body to utilize the supplement effectively.
Customer testimonials highlight discernible improvements in muscle mass, energy levels, and recovery post-workout within weeks of consistent use. Many users also appreciate the fact that it would not cause the common side effects of bloating or digestive discomfort like most mass gainers.
Backed by research and real-world results, Crazy Nutrition Mass Gainer delivers on its promises, providing a balanced and efficient way to support fitness goals when paired with a proper diet and exercise routine.
Product Price of Crazy Nutrition Mass Gainer
Crazy Nutrition’s MASS GAINER is sold through the official Crazy Nutrition website, with pricing built around bag-based options for better value. Here’s how the pricing breaks down:
- 1 Bag (One-Time Purchase): $89.99
- 1 Bag (Subscribe & Save): $62.99 per bag, saving $27 per order on auto-delivery, with the flexibility to cancel anytime.
What Do the Crazy Nutrition Mass Gainer Customer Reviews Says?
Here’s what crazy nutrition mass gainer reviews says:
Great meal replacement!
Great product as I use it in between meals to get calories in and added protein. The only negative is if you live in the States, as I do, it takes extremely long to receive the product. I am currently at 18days since I ordered and it still has not arrived in the U.S. Hope they can get it to the U.S. distribution center soon so I don’t have to wait for it to go through customs. Love the product though! –Todd P.
Effective and Tasty
Been taking this a couple months ago in combination with working out using my new PowerBlock set. Up from the low 140s to around 150 in two and a half months. It’s been an easy way to get in the extra calories I had been missing to really put on mass –Ryan R.
Solid formula
I’ve tried a ton of gains formulas. This is my new favorite. Great ingredients. Digests easy. Easy to mix. I add bananas and peanut butter to mine and it’s awesome. –Trent R., Gainesville, FL
Crazy Nutrition Mass Gainer review: FAQ’s
Q: Does Crazy Nutrition Mass Gainer come with a money-back guarantee?
A: Yes, Crazy Nutrition Mass Gainer is backed by a 60-day money-back guarantee. Customers not fully satisfied can return the product for a full refund, no questions asked.
Q: Does it contain any artificial additives?
A: No, the formula is free from synthetic fillers and preservatives, focusing on natural, high-quality ingredients.
Q: Does Crazy Nutrition Mass Gainer help with recovery?
A: Yes, its ingredients, including protein, creatine, and DigeZyme®, support faster muscle recovery and reduced fatigue after workouts.
Q: What flavors are available?
A: Crazy Nutrition Mass Gainer comes in two flavors: chocolate and vanilla.
Q: Can women take Crazy Nutrition Mass Gainer?
A: Yes, the formula is suitable for both men and women looking to gain weight, build muscle, or recover faster from intense training sessions.
Q: Does Crazy Nutrition Mass Gainer cause blood sugar spikes?
A: No, the formula uses low-glycemic complex carbohydrates from oat flour to support steady energy without triggering blood sugar spikes or crashes.
Q: Is Crazy Nutrition Mass Gainer gluten-free?
A: Yes, the formula is gluten-free and soy-free, making it suitable for users with gluten sensitivity or soy-related dietary restrictions.
Crazy Nutrition Mass Gainer Review: Conclusion
Crazy Nutrition Mass Gainer stands out as a thoughtfully formulated supplement for those serious about gaining size. Built around whole-food sourced ingredients, patented compounds like DigeZyme and AstraGin, and free from low quality fillers, it delivers 488 calories, 40 grams of protein, and 55 grams of carbohydrates per serving.
The added digestive enzymes help reduce bloating, making it easier on the stomach than most mass gainers in the same category. Backed by a 60-day money-back guarantee, it offers a low-risk option for anyone working toward steady muscle growth. The product is available through the official website.
Where To Find It?
You can BUY it directly from the Official Website
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