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Gold Standard Gainer

  • Build Muscle Mass, Gain Strength & Hit Weight Goals
  • 55 Grams of High Quality Protein
  • 750-770 Calories, from quality ingredients
  • 109-116 Grams of Carbohydrates from Oat, Pea & Potato

Product Overview


Size is an advantage in many sports, but some athletes have a hard time gaining weight. You can only eat so much food, so we formulated GOLD STANDARD GAINER™ with quality calories in a 2:1 ratio of carbohydrates to proteins. Each full-sized serving weighs in at 763 calories with 55 g of high quality complete dairy proteins, mostly from isolate sources to help you grow bigger and stronger when taken in conjunction with an exercise program. The carbohydrate blend includes oat, pea and potato, and the fats include medium chain triglycerides, chia and flax. We took it a step further by making the powder easy to mix in a shaker cup. No blender needed. There is no doubt that GOLD STANDARD GAINER™ raises the bar for weight gain performance.



  • Build Muscle Mass, Gain Strength & Hit Weight Goals

  • Protein & Carb Muscle Recovery Formula
  • 55 Grams of High Quality Protein (Complete Protein from Primarily Isolate Sources)
  • 750-770 Calories, from quality ingredients
  • Fats From Flax, Chia & MCTs
  • 109-116 Grams of Carbohydrates from Oat, Pea & Potato
  • 2:1 ratio of carbohydrates to proteins
  • Informed Choice Certified - Trusted by Sport
  • For a higher Standard of Muscle

Suggested Use

Mix 4 level scoops with 650 ml of cold water or milk using a shaker cup post-workout and/or between meals to add calories, carbs and protein to your healthy, balanced diet.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Overall Rating (4.8)
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Best quality

Review by Sami on Aug 22, 2023
Verified purchase
I order gold standard gainer which is the best quality and i can see change in my body and optimum nutrition has a amazing customer service

Parfait gainer

Review by Allali on July 5, 2023
Verified purchase
Parfait comme gainer

Number one

Review by Chya Zaher on July 2, 2023
Verified purchase
The best protein gainer ever tried

Summer gainzzz

Review by Jamaul Foster on June 29, 2023
Verified purchase
It’s actually good for bulking up. I’m reinventing myself with it.

Gold Standard aka Elite standard

Review by Boss Jay on May 14, 2023
Verified purchase
It’s good quality and it’s helping me get my summer body. I’m seeing results and trust me at this rate I’m going to be outside all summer


Review by Mehdi on May 13, 2023
Verified purchase
Number one

Great weight gainer

Review by Roger T on Jan 26, 2023
Verified purchase
Natural ingredients and i feel good after taking it. Seems to be high quality.

Number 1 in the world

Review by Ali on Jan 22, 2023
Verified purchase
Nothing feels like having the best quality gainer in the world, I order 2 every month and I love it. Thank you ON for taking care of my nutrition.


Review by Anonymous on Dec 31, 2022
Minimum unnecessary ingredients

Did the Job!

Review by Diane on Oct 22, 2022
My husband was having major dental surgery and needed to put extra lbs. on.