100% Gold Standard Casein by Optimum Nutrition

Optimum Nutrition's 100% Gold Standard Casein is high quality casein. Slow protein is needed when the athlete does not have to eat for several hours, and the flow of amino acids into the blood is better to ensure a constant. Casein helps to recover during a night's sleep. It removes the increased hunger that torments many people during hard training. Moreover, it is not necessary to drink it strictly at night. Casein is suitable as a substitute for eating if a person has no other food at hand, and you must follow the regimen.


  • 1 Effects from the reception
  • 2 Composition
  • 3 How to take
  • 4 reviews

Reception effects

  • Increased lean muscle mass with adequate training load;
  • Improving the effectiveness of any diet;
  • Acceleration of metabolic processes;
  • Increase in power indicators;
  • A calmer night's sleep.

There is an opinion that casein should not be taken if the goal is to reduce weight and lose weight. This is not so, anyone can take casein, it does not have any special substances that contribute to weight gain. If you need to remove the fat layer, improve body composition and lose weight, casein can be drunk instead of an evening meal to provide the body with amino acids overnight. This will allow you to better recover after a workout and help get rid of a constant feeling of hunger. In addition, a good night's sleep is the key to the normal synthesis of growth hormone. Its adequate level will help to lose weight not due to muscle catabolism, but due to fat.


Composed of 100% Gold Standard Casein by Optimum Nutrition:

  • 24 g of protein per serving;
  • About 3 g of carbohydrates (from lactose);
  • 0.3 g fat

This is a high-quality casein that does not contain flour, impurities and sugars. Some flavors may contain natural cocoa or vanilla. No sugar or other carbohydrate supplements. 3 g of carbohydrates per serving come from lactose. Protein can be consumed even by those who have excluded sugar from the diet.

How to use

The classic option is to drink a serving in the morning, afternoon and evening. But this may not be the best option. The fact is that casein is indeed digested for a long time and can slow digestion. It is important for an athlete to receive not only protein, but also the whole complex of vitamins, minerals, and other nutrients. It is better to drink casein when the next meal is not expected, at least within 4-5 hours. Therefore, three doses of such a protein is not entirely true. It is advisable that the athlete be fed regular protein shakes for shorter intervals between meals.

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This casein has earned the love of both professional athletes and fitness enthusiasts. Experienced bodybuilders who have tried many supplements say that this protein has no equal in terms of digestibility. Indeed, on forums and websites with reviews about sports nutrition, it is difficult to find any kind of negative, or mention of problems from the gastrointestinal tract in those who consumed such a protein. Athletes write that it is perfectly absorbed and has a normal consistency.

The product has a good taste. The most popular are chocolate and vanilla, fruit and berry are less popular. It is worth noting that this casein is used not only as a basis for cocktails, but also as an additive instead of flour in various types of pancakes, and other protein baked goods.

Optimum Nutrition's 100% Gold Standard Casein is a premium brand that cannot be cheap. In addition, the cost of imported proteins in our market is always higher. A certain amount of negativity on the network can be read at a relatively high price, but other reviewers object that it is better to overpay a little and get high-quality casein than to pay less for a mixture of protein with unknown excipients.