Optimum Nutrition Gold Standard Casein Protein Powder 924g - CHOCOLATE SUPREME - 920g Chocolate

Brand: Optimum Nutrition - compare every Optimum Nutrition product

From £17.49 across 7 UK retailers.

Categories: Muscle Gain, Casein Protein, Recovery, Sleep & Recovery, Gluten-Free, Dairy-Free, Powder, Informed Choice

Serving size: 1 scoop (33g)

Analysis

A high‑protein casein powder designed for muscle gain and overnight recovery, offering 23.8 g protein per 116 kcal serving across multiple flavours and pack sizes.

+ 23.8 g of slow‑digesting casein protein per scoop, supporting sustained amino‑acid delivery. + Low in fat (0.7 g) and carbohydrates (3.6 g), suitable for lean‑muscle goals. + All ingredient doses are fully disclosed, enhancing transparency. + Includes soy lecithin, a rare addition among similar casein products, which may aid mixability. - Contains milk and soy, plus possible traces of eggs, gluten, peanuts and tree nuts – not ideal for those with those sensitivities. - Sweetened with acesulfame potassium and sucralose, which some users may prefer to avoid.

The formulation is consistent across the range, delivering a modest calorie load, high protein, and added calcium (680 mg) per serving, while being gluten‑free and certified by Informed Choice. Variant differences are limited to flavour‑specific ingredients such as cocoa powder in the chocolate version, and larger packs tend to provide better value in this tier. Overall, the product stands out for its dose transparency and the inclusion of soy lecithin, a feature not commonly found in competing casein powders.

Prices across UK retailers

RetailerPriceAvailabilityLink
I Wonder What's Next£17.49In stockView
NI Supplements£40.90In stockView
Optimum Nutrition£48.99In stockView
London Supplements£49.99In stockView
Gym Stop£52.98In stockView
Protein Package£52.98In stockView
The Box Supplements£54.99In stockView

Ingredients

Allergens