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GXN (Greenex Nutrition) Rapid Gain – Best Mass Gainer

(26 customer reviews)
10.00 Cashback
  • Rapid gain weight gainer delivers 376 kcal, 2g dietary fibers, 3g creatine and 19.5 g of protein in each serving(100g), it supports our muscle for the high-performance workout.
  • This is a perfect supplement for weight gain as it not only increases the stamina and but also improve the strength in order to increase the number of reps during hardcore exercise.
  • Each serving of rapid gain mass gainer provides 3g of creatine monohydrate which supply strength throughout the exercise and in faster muscle recovery
  • This is the perfect mass gainer to improve your metabolism and enhance the immune system, use this supplement just after the intense workout for the effective results.
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Rapid Gain is the new and best mass gainer supplement manufactured by GXN. It contains 19.5 g protein, 3g creatine, 2 g dietary fibers in each serving. Everyone dreams of building up an attractive body having proper shape and wants to build up muscles hence appearance matters a lot. Being underweight also invites various diseases because of weakened immune system so it has to be managed to sustain healthy life. Using weight gain supplements is therefore a necessity for lean people. These can be highly beneficial for fast weight gain.

GXN Rapid gain Mass Gainer is the best mass gainer as it is calorie-dense supplement with an ample amount of carbohydrates, sufficient proteins along with vitamins and minerals. Available in many sizes and flavoures. This Rapid gain mass gainer supplement contains some amount of fat too. The focus remains on the carbohydrate content in mass gainers. Generally, the ratio of carbs versus protein is 3:1. it’s consumed in gaining phase. So if your goal is to grow big and gain weight, you need to consume extra calories and it’s the right choice when you want to pump up your muscle with extra calories for muscle growth.

What makes Rapid gain a best mass gainer supplement is its ingredients and serving. Each Serving of this best mass gainer delivers 376 kcal, 72.28g carbohydrate, and 19.5 g of protein in each serving(100g).

It can be consumed post-workout with water, milk, and one or two times a day along with banana shake depending upon the size of the scoop.

Definition of Best Mass Gainer

Mass Gainers are required when someone is not able to meet his or her calorie requirement through diet and need extra support from supplements. This happens in certain conditions like
Excessive high BMR- Some people are Ectomorph, which means they have high BMR, skinny body, and they don’t gain weight easily. Due to high BMR, they always run short of energy in their body and need extra support. The second reason in case your requirement is high as you want to gain weight for some competition or other purposes.

That is why the best mass gainer supplements like Rapid gain are manufactured. It helps you to increase your weight as well as your muscle mass. It has both carbs as well as protein in it. Rapid gain mass gainer is a blend of six different types of proteins, complex carbs, digestive enzymes, and Vitamins & minerals which helps in muscle recovery and helps in gaining mass. Multivitamins in a mass gainer relieve muscle fatigue post-workout by enhancing biochemical reactions in the body for energy. Along with this, you are required to do a good workout also. Consume at least 5-6 litres of water along with it.

If You’re Willing to do hardcore workout and has a goal to gain good muscle mass in 1 month. Go for the best mass gainer Rapid Gain Mass Gainer.

So it is important to make a smart choice and choose a mass gainer which helps in developing a good body but not a fat belly. Rapid Gain is a very important weight gainer for men and solves many of their problems with great benefits such as:-

  • It increases the appetite of the person, which lets them gain weight fast.
  • It enhances protein uptake and improves the body’s ability to absorb the given proteins from the diet, which will help in gaining muscles mass thereby increasing the body weight of the person.
  • It is highly effective with no side effects making it as a safest choice in weight gain supplements.
  • It helps to gain body weight hence an effective weight supplement for all.
  • It also boosts our energy because of the presence of creatine.

People who can use:

This product can be used by anyone who desires an attractive body having proper shape and wants to build up muscles. Athletes, bodybuilders and fitness enthusiasts to help with muscle recovery, lean muscle growth and general growth use Rapid Gain supplement.


Although the risk is small, the possibility exists that it may have an allergic reaction to a food, according to Food Allergy, Research and Education. Weight gainers are a potential source of soy or milk, which are two of the most common food allergens. Medline Plus warns that high doses of creatine may cause damage to your kidneys.


Mix 3 scoops (100 gm) of rapid gain with 400ml of full fat milk (take twice a day). Diabetic, hypoglycemics, pregnant & breastfeeding women should only use this product upon the advice of a qualified licensed physician.

Additional information

Weight N/A
Dimensions N/A

1.1 lbs, 2.2 lbs, 6 lbs, 11 lbs


Rich Chocolate, Strawberry, Milkshake, Cafe Mocha, Mango, Chocolate Swirl, Milkshake Pie, Strawberry Crush, Mango Feast, Natural Banana

26 reviews for GXN (Greenex Nutrition) Rapid Gain – Best Mass Gainer

  1. Vinod Kumar

    Best mass gainer for rapid gain. I have been using muscle grow for 1 month and I gained an exact 3 to 4kg weight. Perfect ratio for carbs and protein. Best for a beginner.

  2. Prashant Deswal

    Support in recovery and repairing both. If you want to gain muscle in less time without much hustle, then Rapid Gain is for u…. very awesome supplement

  3. Sanjeev Kaushal

    Best mass gainer quick gain. I have use only 6lbs rapid gain .. I gained 3kg in first 30 days

  4. Aman soni

    Within 2 weeks I saw the best effects of Rapid Gain. This is the best mass gainer in all aspects either it’s about taste or quality. I am using this as a post workout supplement for better absorption and fast digestion.

  5. Jatin Malik

    Firstly I will thank Greenex Nutrition for 100% authentic supplement. There are rare resource available to get genuine supplement. One of them is GXN.. must try supplement.

  6. Harish Saini

    I was stopped believing that any mass gainer could really help me to increase weight. After long hour research on various websites and analyzing each point I ordered rapid gain. Now I trust on both rapid gain mass gainer and proper research. Gained 3 kg in 20 . No doubt this is the best I could get.

  7. Rohan deshmukh

    The best mass gainer for beginner. Three main qualities of this supplement I would like to mention what I liked the most is…. Great taste, Easy to digest and very fast absorption.

  8. Lakshay

    This is called the wowww supplement. I bought is protein from amazon. Nice one

  9. Farhan

    Overall I find this supplement 8.5/10…. Taste wise 10/10….

  10. Param Tomar

    Guysz… if you really want to gain weight… without any fat…. Then this mass gainer is for u.. I am telling you my personal experience… this is finest supplement dude…. Very effective.

  11. Abhinav rathore

    I purchased this mass gainer from amazon … because as there were some festival discount … and review was also good by user…. Nice mass gainer… no cons found yet… rest lets see… after using 15 daysz.. I can see some good change…. So for I will give 4/5

  12. Shubham

    I like this mass gainer because of three reason… Great quality, fast mix ability.,….. and the best part is very fast absorption and helps in rapid recovery

  13. Deepak Naudiyal

    Carbohydrate and calorie is present in very high amount in Rapid gain. Each serving of this mass gainer impact your muscle effectively… very easy to drink and digest

  14. Pulkit verma

    Three things makes a mass gainer perfect for a user, quality, taste , and digestibility…. All of three is present in this mass gainer.. I am now FAN of GXN supplements.

  15. Sunil Pandey

    I would rate this mass gainer 9.5/10… taste and quality is best.. calorie is present in very high amount which is quite helpful to fulfil daily calorie needs.

  16. Deepak

    Ratio of carbs and protein of this mass gainer is perfect for the rapid growth of muscle.Original product no side effect and Taste is Good .

  17. Balwan Kanwela

    best indian mass gainer for weight gain and muscle growth…amazing chocolate taste .. thanks gxn for best price

  18. Jasmeet

    I have tried so many things earlier. I used this supplement for several days and it has started to show some good results. Product has balanced nutrition value.

  19. Deepak

    Good product for gaining weight, i used i am extremely satisfied with the benefits…..

  20. Devender Singh

    Gxn Rapid gain is absolutely best gainers for who want to gain weight thanks to GXN for make this product.

  21. pradeeprewaria

    GXN Rapid gain is best product for weight gaining… Perfect ratio for carbs and protein and Best in taste & Quality. Thanks GXN for such an awesome product.

  22. vijayberwa00

    Best mass gainer quick gain. I have use only 6lbs rapid gain .. I gained 3kg in first 30 days

  23. Surya

    Fastly gain weight product , lovely tasty and good mixing

  24. sumit

    best gainer for quick body weight gain

  25. Mohit Wankhede

    Best Supplement for Weight gain.. I used for one month and gain 4.5 kg.

  26. Vivek Mukhi

    Best gainer

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