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Optimum 100% CASEIN PROTEIN, 4lb

Sale Sale
Original price $149.95 CAD
Original price $149.95 CAD - Original price $149.95 CAD
Original price $149.95 CAD
Current price $109.99 CAD
$109.99 CAD - $109.99 CAD
Current price $109.99 CAD
Flavour: Chocolate Peanut Butter

ON Gold Standard 100% Casein, 4lbs

Optimal Overnight Muscle Recovery

  • Slow-Digesting Protein for Enhanced Overnight Muscle Recovery
  • Provides Approximately 24 Grams of Protein per Serving for Muscle Building and Maintenance
  • Rich in Naturally Occurring BCAAs (Nearly 5 Grams per Serving) for Endurance and Recovery Support
  • Perfect for Consumption Between Meals and Before Bedtime
  • Low-Calorie Profile: 110-120 Calories per Serving, with Minimal Fat (0.5-1 Gram) and Sugar (1 Gram)
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Natural Product Number Info

In Canada, all natural products must be issued a product license by Health Canada. This product number is known as a Natural Product Number or NPN. Products with this license have been assessed by Health Canada and have been found to be safe, effective and of high quality under their recommended conditions of use.

The NPN for this product is:


The products and the claims made about specific products on or through this site have not been evaluated by or the Canadian Food Inspection Agency (CFIA) and the Department of Health Canada (Health Canada) and are not approved to diagnose, treat, cure or prevent disease. The information provided on this site or any information contained on or in any product label or packaging is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. is not responsible for any statements or claims that various manufacturers make about their products or the general information provided for each product on this website. We cannot be held responsible for typographical errors, product formulation or label changes. Please consult with your own physician or health care practitioner regarding the suggestions and recommendations made on and especially before using any product sold on this website.

Source Certified

Products available at are sourced directly from brands or authorized distributors in Canada or the United States. Products are stored and shipped directly from our climate-controlled warehouse. does not allow 3rd-party resellers on its website.

ON Gold Standard 100% Casein is meticulously crafted to facilitate overnight muscle recovery, thanks to its slow-digesting nature. With each serving delivering around 24 grams of high-quality protein, this supplement aids in muscle development and preservation. Additionally, its substantial BCAA content provides sustained support for endurance and recovery, making it an ideal choice for athletes and fitness fanatics alike.

Utilize this premium casein protein powder after workouts, between meals, or as a pre-bedtime snack to promote satiety and maximize muscle recuperation. By utilizing exclusively micellar casein, the Gold Standard 100% Casein sets the benchmark for slow-digesting protein supplementation, ensuring prolonged muscle support throughout the night.

Experience the pinnacle of slow-digesting protein support with ON Gold Standard 100% Casein. Elevate your recovery game and fuel your fitness journey with this superior supplement.

Nutritional profile may vary with flavour.

Customer Reviews

Based on 20 reviews
Aaron O.
Tastes great!

Most importantly, it does not give me that gut rot and acid reflux that most others give me. Blends well for a Casein protein.

Alan T.
Gold Standard

Name says it all. ON protein has always been good in my experience.

really good

its smooth and tastes great in milk