Best weight gain supplements

3 Best Weight Gain Supplements (2021) And How To Pack Pounds

Best weight gain supplements

For athletes and fitness enthusiasts, having a reliable, safe, and healthy weight gain supplement in their gym bag is a valuable tool for reaching your goal weight, bulking to build muscle mass, and maintaining optimal muscle health.

With so many different products on the market, it is often difficult to know what to choose. Luckily, I’ve got you covered with the three best weight gain supplements of 2021.

Best Weight Gain Supplements Quick Links

Product Image



Rating & Price

Optimum Nutrition Serious Mass Weight Gainer Protein Powder

  • 50g protein per single serving

  • Immune support

  • 1,250 calories per serving


Bodybuilding Signature Multivitamin Tablets

  • Formulated for athletes

  • 1 pill with 29 nutrients

  • Effective dosage


ALR Industries Humapro Tabs

  • 100% absorption

  • Optimal amino acid ratio for better absorption

  • Fully predigested, reduces bloat and discomfort


Review Of The Best Weight Gain Supplements

Considering the pros and cons of weight gain supplements will help you find the best protein drinks for weight gain, the best vitamins to gain weight, and the best supplements for weight gain.

1. The Best Protein Drink For Weight Gain Optimum Nutrition Serious Mass Weight Gainer Protein Powder

Optimum Nutrition Serious Mass Weight Gainer Protein Powder

This delicious protein shake is a real winner for serious mass building. With useful calories for weight gain, fitness training, and muscle development, this is ideal for the bodybuilding enthusiast.

Key Features

  • 50 grams protein per single serving
  • Enriched with vitamin C, zinc, and vitamin D
  • Less than 5 grams of fat

At 50 grams of protein per single serving, this is almost double the protein content of the nearest market competitor. However, the protein content is still within normal levels for digestive functioning. Easily digestible, this formula is a great treat between workout sessions, after meals, or before bed.


  • Can add nuts, berries, or other calorie-boosting ingredients to the mix
  • 25 vitamins and essential minerals
  • Lower carbohydrate content at 254 grams, to promote muscle not fat


  • Can cause bloating sensations if used at full strength
  • Mild indigestion can occur if consumed on an empty stomach
  • High doses of vitamins may trigger sensitivity in some users
As a whole, this protein shake is effective at adding muscle mass when combined with an appropriate workout routine. While the calories are high, this is useful to those who lead active lifestyles and expend lots of energy in the gym. Sip away and watch your muscles recover and put on serious mass.

2. The Best Vitamins To Gain Weight Bodybuilding Signature Multivitamin Tablets

Bodybuilding Signature Multivitamin Tablets

With a healthy immunity, weight gain becomes much easier. This requires that your body perform at peak levels, meaning you need vitamins and minerals to ensure your digestion and metabolism work effectively.

Key Features

  • The highest number of nutrients in supplement form at 29 nutrients
  • Effective dosage per daily requirements for athletes
  • No additional ingredients or fillers, only vitamins and minerals

This is an effective means to fill nutritional gaps in a protein-based diet as followed by someone pursuing bodybuilding. Gain top athletic performance with this balanced vitamin supplement and gain muscle mass effectively.


  • Full disclosure of vitamin content and dosages
  • Sufficient dosage of each vitamin and mineral for athletic needs
  • Scientifically proven ingredients in doses that have been gym-tested for performance


  • Can affect thyroid and cause hot flushes due to niacin content
  • Mildly unpleasant taste
  • Large doses of some vitamins can change color of urine
This is voted as a great all-rounder by many happy customers. It adds weight and maintains healthy vitamin and mineral doses in athletes, making it ideal for a busy lifestyle.

3. The Best Supplements For Weight Gain ALR Industries Humapro Tabs

ALR Industries Humapro Tabs

What if you could gain weight without fat and with just the pop of a pill? Humapro tablets offer just that.

Key Features

  • 100% absorption and zero waste
  • Optimal amino acid ratio for human consumption and absorption
  • Fully predigested reduces bloat

These tablets offer serious lean muscle mass building with zero fat due to the 1 calorie per serving ratio. It promotes body fat reduction, beating whey-based protein shakes.


  • Sourced 100% from lentils makes it lactose intolerant user-friendly
  • Effective mass gain and energy increase
  • Excellent source of protein for vegetarians and vegans


  • Requires a large amount of pills to be taken daily
  • Aftertaste
  • Large pills are uncomfortable to swallow at first
This product is the powder in pill form. It is predigested, so you don’t feel bloated, despite having to take anywhere from 5 to 15 pills per session.

Buyers Guide For Best Weight Gain Supplements

When considering weight gain, you need to follow a balanced and effective approach. Whether you seek to engage in bodybuilding or struggle to gain weight from your normal diet, these considerations made the top three products catch my eye.


While you may want to look at price first, you should look at what is in a supplementary product before you put it inside your body. After all, you’re not swallowing your money, are you?

Optimum Nutrition Serious Mass Weight Gainer Protein Powder offers a high protein content without it becoming dangerous for your body’s digestive capacity.


With competition being fierce in the nutritional market, many suppliers use what they term a proprietary blend. This essentially hides ingredients from consumers. Go with a product like Bodybuilding Signature Multivitamin Tablets, which offers full disclosure.

Consider Alternatives

For those who are on strict diets, suffer from lactose intolerance, or are vegetarian, alternative sources of protein and different weight gain supplements are needed. ALR Industries Humapro Tabs tick my boxes in this department.

Final Gains

A dietary or weight gain supplement is not something you will take only short-term. It is likely to become part of your life, so consider the best quality you can afford or you’ll pay the price later.

Have you discovered the magic pill for weight gain and health? Share your findings in the comments below.

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