ON Gold Standard Pro Complex Gainer 5lbs

$139⁹⁹ CAD

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⭐ Earn ~125 Fuel Rewards points on this order ($1 = 1 point, after your 10% storewide discount)

Flavor

Vanilla Custard Chocolate

Product variants

Product Description

ON Gold Standard Pro Complex Gainer 5lbs by Optimum Nutrition is a high-calorie mass-support formula built for athletes and active individuals who need more calories and protein than whole food alone can reliably deliver. It is designed for lifters working through demanding training phases who want a convenient, consistent way to fuel size and recovery goals. Available at fuelsupplements.com, Canada's trusted sports-nutrition retailer, this 5lb format is a practical entry point into one of the most recognised gainer lines in the category.

Key Benefits

Delivers a high-calorie serving to support increased daily energy intake for size and strength goals
Provides substantial protein per serving, with Whey Protein Isolate listed as a key formula component — always verify the full label for the complete breakdown
Formulated to support recovery after high-volume or high-intensity training sessions
A convenient option for hard gainers and athletes who struggle to meet caloric needs through food alone
Mixes easily into a shake, making it straightforward to fit into a busy daily routine
Available in a 5lb format suited to athletes who want to trial the product or prefer a shorter supply cycle

How to Use

ON Gold Standard Pro Complex Gainer 5lbs is best used as part of a structured training and nutrition plan. Consume around workouts or at any point in the day where boosting your calorie and protein intake is a priority. Always follow the label directions on your specific product for serving size and preparation instructions.

FAQ

Who is ON Gold Standard Pro Complex Gainer 5lbs best suited for?

This product is a strong fit for individuals in a bulking or muscle-building phase, athletes in high-volume training who burn through calories quickly, and anyone who finds it difficult to eat enough whole food to support their size and performance goals.

How does ON Gold Standard Pro Complex Gainer differ from a standard protein powder?

Unlike a standard whey protein powder, which is focused primarily on delivering protein with minimal carbohydrates and calories, a mass gainer like this one is formulated to provide a significantly higher calorie count per serving, combining protein with carbohydrates to help support weight and size goals more effectively.

Where can I buy ON Gold Standard Pro Complex Gainer 5lbs in Canada?

You can order directly through fuelsupplements.com with shipping available across Canada. Fuel Supplements carries Optimum Nutrition products and is a reliable Canadian source for this and other sports-nutrition staples.

Directions and Suggested Use

Suggested Use

Mix the recommended number of scoops with water, milk, or your preferred beverage in a shaker or blender. Consume as part of a nutrition plan that supports your training and calorie goals. Always follow label directions printed on your specific container for the most accurate serving guidance.

Ingredients

INGREDIENTS: Maltodextrin, Protein Blend (Whey Protein Isolate, Whey Protein Concentrate, Calcium Caseinate, Hydrolyzed Whey Protein), Cocoa (Processed with Alkali), Medium Chain Triglycerides, Sunflower Oil, Natural and Artificial Flavor, Sunflower and/or Soy Lecithin, Vitamin and Mineral Blend (Dimagnesium Phosphate, Tricalcium Phosphate, Calcium Carbonate, Sodium Ascorbate, DL-Alpha-Tocopheryl Acetate, Ferrous Fumarate, Biotin, Niacinamide, Vitamin A Acetate, Zinc Oxide, Copper Gluconate, D-Calcium Pantothenate, Manganese Sulfate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Potassium Iodide, Cyanocobalamin, Folic Acid), Salt, Sucralose, Acesulfame Potassium.

CONTAINS: MILK AND SOY.

Ingredients shown for Chocolate — other flavours/sizes may vary slightly; see the label photos in the product images.

Questions & Answers

What's in ON Gold Standard Pro Complex Gainer's protein blend?
ON Gold Standard Pro Complex Gainer uses a protein blend of Whey Protein Isolate, Whey Protein Concentrate, Calcium Caseinate, and Hydrolyzed Whey Protein, combined with maltodextrin as the main carbohydrate source.

How does ON Gold Standard Pro Complex Gainer differ from a regular whey protein powder?
It combines the same protein blend approach with maltodextrin and medium chain triglycerides for extra carbohydrates and calories, while a standard whey powder focuses mainly on protein with little added carb content.

Does ON Gold Standard Pro Complex Gainer contain allergens?
Yes, it contains milk and soy. The formula also includes sunflower and/or soy lecithin and sunflower oil.

Is ON Gold Standard Pro Complex Gainer sweetened with sugar?
The chocolate flavour is sweetened with sucralose and acesulfame potassium rather than added sugar, alongside natural and artificial flavour and alkali-processed cocoa for taste.

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Why these go together

Gainers supply the calories — creatine converts the surplus into strength, and a big shaker makes the servings manageable.

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