In terms of the amount of protein shakes per day, there is no absolute figure as this depends on your protein intake from food. You should aim to consume the majority of your protein from food and then use a shake as a convenient way of topping up your intake. Your protein intake should vary between 1.4-2g/kg body weight to support performance, going towards the higher end if you are aiming to build muscle. Also to support recovery and performance  your protein should be evenly spread across the day, aiming for 20-30g of protein at each meal. There is no best time to take a protein shake as it can be taken at any time throughout the day but a protein shake after a workout is a good option as it provides the muscle with a high quality protein source which is delivered to the muscles fast after exercise.

Optimum Nutrition is and has been the leading protein brand since the mid-1980s. Our Gold Standard proteins are best-sellers at all major specialty health & fitness retailer for good reason: they are made with the finest ingredients, under the highest quality conditions and are sold at a competitive price. We encourage you to search the web and bodybuilding forums for product reviews. Millions and millions of satisfied users are the best endorsement that we can ever provide. We think you'll like what you read...and enjoy our proteins even more.    

Optimum Nutrition was the first brand to bring powdered casein to the market and continues to be one of the only brands to offer micellar casein as its only source of casein in this product. Gold Standard 100% Premium Micellar casein is a slow digesting protein and when compared to other proteins can take more than twice as long to be broken down into its amino acid subcomponents. This slow digestion and absorption can be beneficial especially at bedtime when your body typically goes for hours without food.  

There is no added vitamin K in the product.  

The BCAA Boost powder EAA's are in a 2:1:1 ratio for leucine, isoleucine and valine. This is based on the fact that all proteins (whey, casein and egg) all have a similar ratio.

Optimum Nutrition protein products including Gold Standard 100% Whey contain complete high quality protein sources. This means that they contain all 20 amino acids - which are divided into essential (not produced by the body and are required from food in the diet) and non essential (produced by the body and not needed from food in the diet) amino acids.   It is well understood though that a complete protein with all 20 amino acids is needed to support muscle growth and maintenance.

This is naturally occurring in milk and is present at approximately 90-110mg/serving

All the whey used in our products is sourced from cow’s milk.

The flavours used in the Gold Standard Whey products are processed using alcohol therefore trace amounts may be present. The Gold Standard 100% Whey Double Rich Chocolate is specially formulated so as to not contain traces of alcohol.

No, it is a synthetic product with no animal ingredients so is considered vegan.

It is derived from the fermentation of glucose. This is a soy free product.

It is added to the product to allow the product to be better dispersed when liquid is added.

Gold Standard Whey protein uses ultrafiltration and ion exchange processes to produce a superior product which supports training goals. These processes do denature the protein, however this does not affect the proteins ability to support muscle growth and maintenance after training.  In fact cooking and the digestion process also leads to denaturation.

Gold Standard 100% Isolate is 100% whey protein isolate compared to Gold Standard Whey which contains both whey protein isolate (WPI) and whey protein concentrate (WPC) in its formulation. Gold Standard 100% Isolate therefore has slightly more protein (25g/serve) than Gold Standard 100% Whey (24g/serve) and a lower level of carbohydrate and fat per serving, which could therefore suit the macro-conscious consumer. However, both protein powders support muscle growth and repair effectively.