Isolate is a protein powder made by Optimum Nutrition.

It’s a lean, fast-absorbing formula, designed for building lean muscle.

Optimum Nutrition is an American supplement company, founded in 1986. They are perhaps best known for their best-selling “Gold Standard” whey protein.

Ingredients Label

Active Ingredients

Whey Protein Isolate

Whey is one of the two main proteins found in cow’s milk.

Studies have proven that whey is very effective for enhancing muscle growth and repair (1).

“Isolate” is a super-refined form of the protein, with almost all of the milk fats and sugars removed.

Its quick absorption makes it a perfect protein source for post-workout use.

Who Takes It?

Athletes wanting a lean, fast-absorbing protein will enjoy using Isolate.

How to Take

Mix 1 scoop (34g) with 250mL water or milk.

Consume post-workout, or as desired at any other time of the day.

Side Effects

Excess protein consumption may worsen an existing kidney or liver condition.

Pros

Very lean formula, with few calories from fats or carbohydrates
Multiple tub sizes and flavours to choose from

Cons

May not be much superior to whey protein concentrate
No extra ingredients

Conclusion

Optimum Nutrition Isolate is a very simple but effective formula, from a company with a great reputation.

It’s a great protein powder for post-workout or general use, and can be easily added to baking recipes.

Although it’s absorbed faster than a standard whey protein concentrate formula, it may not necessarily provide significantly better results.

For a more cost-effective option, you may be better off buying a cheaper formula, such as their Gold Standard protein.