Evidence reviewed: 6 October 2026. This is a critical narrative review of selected published research and guidance, not a new systematic review. Studies of an ingredient do not establish that the linked branded product produces the same results.

Start with the gap in your diet

A protein shake is useful when it makes an appropriate daily protein intake easier to achieve. If you already meet your needs through meals, adding a shake is not automatically an upgrade. I would first look at what you eat on ordinary working days, not the best day you can remember.

Consider breakfast, lunch and the period after training. Are you missing meals, relying on snacks or finding it difficult to prepare food? A convenient protein source may help. If the main problem is an unrealistic meal plan, the better solution may be to simplify that plan.

What resistance-training research actually finds

Morton and colleagues pooled 49 studies involving 1,863 participants. Protein supplementation produced a modest additional benefit alongside resistance training: about 0.30 kg more fat-free mass and 2.49 kg more improvement in one-repetition maximum strength on average. These are pooled differences, not the total gains from training or a promised result from one brand. [1]

Their analysis estimated a plateau in additional fat-free-mass benefit around 1.6 g of total protein per kilogram of body weight per day, with uncertainty around that estimate. It should not be treated as a precise biological switch. Training experience, energy intake, age and the research methods affect interpretation. [1]

Translate the evidence into meals

The ISSN position stand describes approximately 1.4–2.0 g/kg/day as sufficient for most healthy exercising people. For an 80 kg adult, that corresponds to roughly 112–160 g across the whole day, including food. Individual planning may differ, particularly during energy restriction or where clinical considerations apply. [2]

I would spread useful protein-containing meals across your routine rather than making a narrow post-workout window the centre of your day. For example, plan a breakfast you will actually eat, a reliable lunch and a dinner that suits the household. A shake can fill a remaining gap. This is usually more sustainable than adding several supplements around an inconsistent diet.

Whey supplies essential amino acids and is convenient, but the comparison is not “whey or no protein”. Dairy foods, eggs, meat, fish, soya and well-planned plant-based meals can also contribute. The best practical choice depends on your preferences, appetite, budget and tolerances.

Whey and collagen serve different purposes

A randomised study in healthy older women found greater stimulation of muscle protein synthesis with whey than with collagen peptides. This was a specific study of a physiological response, not proof that everyone will gain a certain amount of muscle. It does support being selective about protein quality when muscle retention is the goal. [3]

A systematic review of protein source and quality also highlights that protein sources differ in their effects on muscle protein synthesis. A product labelled “protein” is therefore not automatically interchangeable with another for every purpose. [4]

Reading the Gold Standard label

The linked product is Optimum Nutrition Gold Standard Whey, shown in the supplied listing as Double Rich Chocolate. The manufacturer's label lists approximately 24 g protein per serving; check the selected flavour and pack because formulations and serving sizes can vary. It is a whey blend, so do not assume it is pure isolate or lactose-free. [5]

Compare cost per serving of protein, not just the size of the tub. Confirm the seller, seal, expiry and selected variant before purchasing. The TikTok listing supplied is from a third-party seller; this article does not authenticate an individual tub or guarantee that the seller is authorised by the manufacturer.

Fat loss, tolerance and sensible boundaries

A shake still contributes energy. During fat loss, it should fit the food plan rather than become an unnoticed extra on top of everything else. I would assess whether it helps hunger, convenience and adherence in your own routine rather than assuming that “high protein” makes any product automatically useful.

Avoid whey if you have a milk-protein allergy. If lactose causes symptoms, inspect the formulation and discuss suitable alternatives. People with kidney disease or a prescribed protein restriction need individual clinical advice before using generic sports-protein targets. Evidence in healthy exercising adults does not replace that advice. [2]

Build a routine you can repeat

Protein advice becomes valuable when it works on a busy Tuesday, after a late shift or while cooking for your family. My coaching helps turn targets into practical meals and purposeful training. Enquire about nutrition and coaching and tell me where your current routine breaks down.

Research and further reading

  1. Morton et al. (2018). Protein supplementation and resistance-training adaptations: systematic review, meta-analysis and meta-regression.
  2. Jäger et al. (2017). ISSN position stand: protein and exercise.
  3. Oikawa et al. (2020). Whey versus collagen and muscle protein synthesis in older women: randomised trial.
  4. Protein Source and Quality for Skeletal Muscle Anabolism (2021), systematic review and meta-analysis.
  5. Optimum Nutrition: Gold Standard Whey product and nutritional information (manufacturer).