Universal Nutrition Gain Fast 3100

(18 customer reviews)

Out of stock

Goal: Muscle Building, Bulking
Servings: 10 (5.1 Lb) | 22 (13 Lb) serving size 229G
37 G Protein | 162 G Carbs | 8 G Fats

Imported by Shri Balaji Overseas (Official) Fulfilled by Acacia World

Delivered in 3-9 working days    EMI Option Available Know More

Scroll Down to know more



If you turn back the bodybuilding clock, you’ll no doubt remember that old stand by, the “weight gainer.” You probably picked up an economy-sized bottle when you were playing high school football–before you became a competitive bodybuilder. Along with the Animal Pak, a quality weight gainer was probably one of the first supplements you ever used. For years, supplement companies sold tons of this stuff. Why? Because it worked.

Today, the weight gainer has lost much of its popularity. And over the years, the weight gainer has changed very little. But whether you grew up bodybuilding in the 1980s, 1990s or today, one thing remains certain: to bulk up and put on quality muscle weight, you need plenty of calories. And when you can’t eat any more, you need more calories. Gain Fast 3100 helps. Big time. For most of us, putting on weight is a simple process (for some, all too easy). Eat more of everything–quality protein, whole foods, vegetables, eggs, milk, fruits, good fats, and the like. For others, gaining weight is a difficult proposition. You have a hard time eating every three hours. You always feel full. Maybe you’re a “hard gainer” who can’t seem to put on weight no matter how you try or how much you eat.

Gain Fast 3100 has been designed to fuel your body with up to 3100 quality calories per day. But sometimes, even mega-calories aren’t enough. Sometimes you need something more, something like anabolic boosters, performance herbs, natural plant sterols, EFAs, digestive enzymes, and muscle optimizers. Where else can you get this kind of formula? Nowhere else in the world. It’s only available in Gain Fast 3100. With Gain Fast 3100’s exclusive “Get Big Quick” Formula, you get over 3100 calories from 150g of protein, 596g of carbohydrates, and only 15g of fat. Find out why Gain Fast 3100 is our best-selling weight gainer, bar none. Best of all, Gain Fast 3100 comes in several delicious flavors: Vanilla, Chocolate, Pina Colada, and Banana. It also comes in two sizes, 2.55lb and 5.1lb. So when you want to bulk up in the off-season, or you just want to add some quality mass, turn to Gain Fast 3100.

SKU: UNI014 Categories: ,

Supplement Facts


How to Use

Mix 1 serving (5 scoops) of Gain Fast with 3 1/2 cups of Water or cold whole milk. To increase your intake mix 2-3 servings a day and consume.

Based on 18 reviews

4.4 overall

Add a review

  1. Surjeet Kalra

    not satisfied its ok

    i am not satisfied as people said take universal its the best i didn’t find that kind of result in me i was as same as after i took this ( my diet is less i know) but the product is only ok i am not satisfied taste is amazing blending is good

    Surjeet Kalra

  2. Vishal Tomar


    nice product..but it will give u belly for sure..u have to follow abs exercise strictlt for cutting u need more repitation..n u have to shake it properly for best result

    Vishal Tomar

  3. Gagan talwar

    Good one

    I have noticed increase in my bodysize,biceps too.Here is a warning,if you are doing just normal workouts.This stuff will give little results.I increased my intensity as well as changed my routines and it gave me good results.I am happy but some other products have performed better then this.It too caries a warning from USA food department on some ingredient used.

    Gagan talwar

  4. Tilak Anand

    A comprehensive gainer

    i didnot order it online but bought it from your shop in Jammu.i put on 4-5 kgs of good weight.it had no side effects like acne and the chocolate flavor was quite good.but this was the first time i used it.the second time i went for the same product (10lbs this time) but from a differnt shop.he palmed me off with a counterfeit product(son of a b*tch),didnt gain a single gram from it.i am just happy that it didnt had any side effect on me. so guys just be aware of the counterfeits out there as they look exactly the same as original

    Tilak Anand

  5. Eshant Kohli

    boosts gains in my body

    this supplement iz easy to use .. with a great taste it shows better results.. so on this price its the best for health

    Eshant Kohli

  6. Udai Shankar

    Good stuff!!

    a 5lb jar shouldn’t last for over 10 days,let alone 3 weeks or a month!! 3-5 scoops with half a liter whole milk divided into two servings a day will bulk you up with about 5-8 pounds by the time you finish up the jar. Good stuff but definitely needs you to consume extra carbs for better results.. calculate your daily carb and protein requirement and eat accordingly. P.S. you will need to workout on your abdominal muscles too unless you want some fat on your belly!!

    Udai Shankar

  7. Gurmeet

    Unieversal GainFast.

    it does have a solid amino complex in it as well a good amount of protein, 890 cl. and 42g of protein at this price is good. before bed shake will go great with it. Its not a magic medicine. you will need a good diet for it to work on your body.


  8. Anmol Deshpande

    Amazing love this product

    Great product and it gives u fastest result guaranted. Just take the recommended dosage.

    Anmol Deshpande

  9. Ashok Vir

    great product

    use this together with a whey protein to get a higher amount of protein.it contains arginine alpha keto glutarate which helps your performance in the gym.i take the vanilla flavour most of the time.great mass gainer ,but gives bigger belly,so more ab workouts are needed while using this.My recipe goes like this–1/1.5/2 scoops ofgain fast,2 scoops complan(just for the extra carbs),2 scoops of whey,icecream toppings (for flavour–best flavoring i have ever tried,like choco syrup,apple butterscotch syrup,butterscotch etc,available in department stores or bakery materials wholesale store)

    Ashok Vir

  10. Rakesh Chadda

    Nice Product

    Great taste. not very expensive. easy to mix. good results if you take a proper diet

    Rakesh Chadda

  11. Alankrit Gupta

    great service

    Awsm product and very good service by Acacia

    Alankrit Gupta

  12. Wajahat Shams

    best mass gainer for beginners

    It is mentioned in the products description “you will feel healthier” – which is for real. It also contains some herbs. This product is also suitable for those who don’t workout. All you need to do is some stretching and basic exercises at home, so that your belly don’t come out.

    Wajahat Shams

  13. Himanshu Thakral


    Its worth money and showed me a good result. Will shop very soon again

    Himanshu Thakral

  14. Ajay Arora

    Gain Fast 3100

    First Its a Nice Product For Gaining Your Weight not Muscle Mass ,Its Gain My Weight 8 Kg Within 45 Days, Its Gain Weight From 67kg to 75kg. If You Gain Your Weight Immediately Must be Use to compare any Other Weight Gainer Like On Serious Mass, xtreme Mass Gainer,

    Ajay Arora

  15. Prateek Babbar


    UN Gain Fast 3100 is the BEST weight gainer. It apart from the fact that it provides good amount of calories and optimum protein- carb ratio it contains valuable herbs that makes ‘feel good’ from within. No other weight gainer in this segment shares this theory. It also contains digestive enzymes which makes better digestion and availability of protein. One can add extra Creatine (which is freebie with Gain Fast)for more strength and stamina. Lastly, no bodybuilding supplement on the earth will give its results unless you take pain in gym, unless you hit those weights in gym rigorously. ACACIA WORLD GUARANTEES ORIGINAL PRODUCT, AND IT DELIVERS THOSE GOODS.. ITS YOU WHO SHOULD GUARANTEE TO YOURSELF TO “WORK HARD IN GYM” TO GET THE RESULTS. If you do not do proper exercise then NOTHING will work. There are no magic pills/supplements, unless you punish yourself in gym. Magic happens only after you do hard workout…. Acacia ROCKS !!!!!

    Prateek Babbar

  16. Sunil Bajwa

    Best Mass Gainer

    I found ultramass the best mass gainer which had good results on my body in just 1 month. i would recommend thid product to all who are looking to gain weight not gain fat..

    Sunil Bajwa

  17. Amanpreet

    Gain Fast mass

    It is really an amazing product to gain mass it gives you about 3100 calories of to fuel the muscles, strong product with strong results made fpr you


  18. Arjun

    Paisa Wasool

    Universal Nutrition Gain Fast 3100 awesome product to gain very fast… i have gained 3kgs since i started using it… Real Paisa Wasool


You may also like…


  • Cash on Delivery Available in all major cities. Only Cash Accepted.
  • Orders that weigh upto 500 Grams are generally delivered within 2-5 Days
  • Orders that weigh more than 500 Grams may be delivered in 3-9 days
  • The exact order delivery date will be mentioned on your tracking details
  • Free Shipping on Orders above Rs. 499. Shipping Charges Rs. 99 below that.

Know More


  • Returns accepted within 10 days from the date of delivery of your order.
  • International products can be returned only if the seal of the product is un-tampered.
  • We will arrange for the pickup of the product after you inform us.
  • Refunds/Exchange will be processed only after the product reaches back to us.
  • Orders that are in transit can not be returned/cancelled till they reach the customer or back to us.

Know More


  • 1% Cashback on this product as Credit Points.
  • 2% Extra off when you choose Direct Bank Transfer during checkout

Checkout more Special Offers

EMI Options

  • You can avail EMI on your purchase by paying through Debit/Credit Card
  • To do so you need to checkout using "Online Payment Debit/Credit Card or Netbanking" option powered by Razorpay
  • You will see various payment options on the payment page
  • Choose EMI option and select from various offers.
  • Make the payment and you will be charged an EMI based on what you chose.

For any queries, please contact us.

EMI is not available on COD or any other payment method.



  • Returns accepted within 10 days from the date of delivery of your order.
  • You can return an Acacia product if you don't like it within 10 days.
  • We will arrange for the pickup of the product after you inform us.
  • Refunds/Exchange will be processed only after the product reaches back to us.
  • Orders that are in transit can not be returned/cancelled till they reach the customer or back to us.

Know More