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Optimum 100% Whey Gold Standard Protein Review

Optimum Nutrition’s Gold Standard 100% Whey is a popular protein powder touted as the world’s #1 selling protein. So how does this protein powder that is primarily whey protein isolate stack up against others of its kind?

100% Whey Gold Standard: First Impressions

Gold Standard 100% Whey is encased in a nicely compact tub with clear informative packaging; not overloaded with information. Next to a comprehensive ‘directions’ section is a standard nutrition panel.

A positive point is the ingredients list which consists of a short set of ingredients; illustrating that the product is mostly protein. The rest of the packaging contains a succinct yet informative section on whey protein isolates, the overall blend of the protein, an amino acid profile as well as some extra positives regarding the blend.

The powder itself is quite fine with a flour-like consistency and a strong sweet smell that is not overpowering. A 30g scoop is included with the powder for ease of measuring.

100% Whey Gold Standard: Taste

Optimum Nutrition Gold Standard 100% Whey comes in a variety of flavours including more common flavours such as: vanilla, chocolate, strawberry and banana cream, as well as more novel flavours such as rocky road, cookies and cream, chocolate mint and coffee.

As the protein powder with the most flavours, 100% Whey Gold Standard caters for even the fussiest of tasters. Most of the flavours are pleasant when mixed as per instructions however some can be quite sweet, so it might be beneficial to mix the powder with some extra water or milk.

There is no significant aftertaste or grittiness with any of the range, however as with any protein powder, mixing with milk gives a creamier texture which has a better mouth feel and palatability than mixing with water.

Overall, 100% Whey Gold Standard comes in a very sizeable range of pleasant-tasting flavours that are extremely easy to consume.

100% Whey Gold Standard: Mixability

The entire range of Optimum Nutrition’s Gold Standard 100% Whey mixes extremely well either with a spoon, shaker or blender. Once mixed there are minimal clumps or residue at the base of the shaker.

There is also very little frothing or foaming and any evident foaming settles extremely quickly. Following the directions and mixing with 200-250mL of water or milk produces a nicely dissolved solution.

100% Whey Gold Standard: Value for Money

At the time of writing, 100% Whey Gold Standard comes in 6 sizes. Below is a comparison table of sizes and price/gram of protein:


Price/ g Protein (A$)





909g (2 lb.)


1.3kg (3 lb.)


2.3kg (5 lb.)


4.5kg (10 lb.)


If consuming protein long term, then buying the larger size of 4.5kg (10lb) will be more cost-effective at around $1.65 per serving.

Optimum Nutrition’s 100% Whey Gold Standard has a high protein by weight percentage at 77% protein. Compared to most other products, Optimum Nutrition’s whey range is slightly more expensive, however, coupled with the large range of flavours, good taste and ease of mixing, it still represents good value for money.

100% Whey Gold Standard: Pros

  • The inclusion of a blend of 4 different proteins is a safety net to ensure you get the benefits of each protein blend. The use of isolates, concentrates and peptides ensures a constant profile of protein digestion and absorption so as to not overload and saturate the transport systems involved in the absorption of protein.
  • The use of two differently filtered whey protein isolates also helps to ensure that bioactive compounds and important subfractions such as lactoferrin, growth factors (important for organ growth and function), cytokines and immunoglobulins (for a healthy immune system) are available whilst not compromising the high percentage of protein in the product. The inclusion of aminogen® and lactase is also beneficial to ensure faster digestion and absorption of the protein as well as making it friendlier for lactose intolerant individuals.
  • Furthermore, the amount of essential amino acids per serve (11g) is more than enough to maintain positive muscle protein balance as shown by several studies1,2.
  • Gold Standard Whey is gluten-free in most flavours, this is clearly printed on the product packaging.
  • Contains NO GMO ingredients.
  • It is easy to mix as discussed above.
  • Represents good value when measured using various variables.
  • Has a pleasant taste making Gold Standard Whey Protein enjoyable for most users.
  • Optimum Nutrition is a trusted brand with a long history of making high-quality protein powder.

100% Whey Gold Standard: Cons

  • Because the blend of whey proteins in Optimum Nutrition’s Gold Standard 100% Whey is absorbed quickly, it is unsuitable as a protein for sustained delivery over several hours. This would apply if using it as a late-evening protein powder & you want a consistent supply of amino acids whilst you sleep.
  • Like other blended whey proteins, Whey Gold Standard is low in carbohydrates. Therefore it's best combined with an intra or post-workout carbohydrate-based supplement if glycogen restoration is a priority.
  • As is the case with many other protein powders Gold Standard Whey uses both Sucralose & Acesulfame Potassium, FDA-approved artificial sweeteners. Some users who wish to use strictly natural products may therefore prefer to use Optimum Naturally Flavoured Gold Standard Whey.
  • Contains a small amount of lactose which may cause digestive issues & abdominal discomfort should you be lactose intolerant or sensitive to dairy.
  • Gold Standard Whey is a dairy-based protein powder. This makes it unsuitable for vegans & most vegetarians.

100% Whey Gold Standard: Active Ingredients

1. Protein Blend – Contains a blend of whey protein isolate, whey protein concentrate and whey peptides.

  • Whey Protein Isolates: Filtered whey that produces the highest protein amount by weight at 90%+. The water portion is removed which removes most if not all of the fat, carbohydrates, cholesterol and lactose.
  • Whey Protein Concentrate: A filtered protein that produces a high proportion of protein by weight, but less so than whey protein isolates. Contains a low level of fat and cholesterol, however, contains slightly more carbohydrates than isolates.
  • Whey Peptides: Partially broken down protein to aid in faster absorption of protein.

2. Lecithin – A food additive often used to help with mixing and dispersibility as well as to improve shelf life.

3. Acesulfame Potassium – A zero-calorie sweetener used often in conjunction with other sweeteners such as sucralose or aspartame to produce a better sugar taste and to mask any undesirable aftertaste.
4. Aminogen® – A commercial substance used to break down long-chain peptides into smaller peptides and their respective amino acids for faster digestion and absorption.
5. Sucralose – A very sweet artificial sweetener.
6. Lactase – The enzyme used to digest lactose; the sugar found in milk and milk products such as whey.

Gold Standard Whey Protein: Industry Leading Manufacturing & Testing

Optimum Nutrition's Gold Standard Whey Protein is known for its high-quality manufacturing standards. Glanbia, the parent company of Optimum Nutrition uses state-of-the-art manufacturing processes including a cold-filtration process to separate the whey protein from other non-desired components including fats and lactose, preserving the protein's biological activity and maintaining its natural structure. This process ensures that your Gold Standard Whey Protein is a pure and high-quality protein powder.

Additionally, Gold Standard Whey Protein undergoes rigorous testing to ensure its quality and purity. Glanbia conducts both in-house and third-party testing to check for banned substances, heavy metals, and microorganisms. This level of quality control ensures each batch of Gold Standard Whey Protein meets the highest standards of quality and safety before it reaches you, the consumer.

In summary, Optimum Nutrition's Gold Standard Whey Protein is manufactured using high-quality standards and undergoes rigorous testing to ensure its purity and quality. This guarantees that the end product is safe to consume and meets the customers' expectations. Optimum Nutrition when it comes to quality protein powder is the industry leader.

100% Whey Gold Standard: Overall Review & Conclusion

Overall, Optimum Nutrition’s Gold Standard 100% Whey is an excellent protein blend to be consumed either between solid meals, pre or post-workout. If using pre or post-workout an added intake of carbohydrates may be beneficial to help restore glycogen.

The huge range of flavours, its ease of mixability, as well as a pleasant taste and value for money, make Optimum 100% Whey Gold Standard one of the forerunners in the quality blended whey protein market today.

With literally millions of satisfied customers around the world, Optimum have certainly done something right in formulating this product. For those who haven't tried ON 100% Whey Gold Standard, well, it certainly can be recommended.

1 Tipton KD, Elliott TA, Cree MG, Aarsland AA, Sanford AP, Wolfe RR. Stimulation of net muscle protein synthesis by whey protein ingestion before and after exercise. Am J Physiol Endocrinol Metab. Jan 2007;292(1):E71 – 76.
Hulmi JJ, Lockwood CM, Stout JR. ‘Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein.’ Nutr Metab (Lond). 2010 Jun 17;7:51.

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