Key Facts About Protein Intake

1. Daily Needs and Ageing:

Sedentary adults need around 0.8 g of protein per kilogram of body weight—approximately 56 g daily for a 70 kg adult. Adequate intake becomes increasingly important as muscle mass declines by 3%–8% per decade after age 30 (around 0.2 kg/year) and 5%–10% after age 50 (around 0.4 kg/year).

2. Whey Protein Composition

Whey protein isolate (WPI) contains 90%–95% protein, while whey protein concentrate (WPC) can contain anywhere from 20% to 85%.

This range depends on how much the whey has been filtered. A 20% concentrate is closer to raw liquid whey and retains more fat, lactose and minerals. An 85% concentrate undergoes greater filtration, removing more of these components.

The main proteins in whey are:

• Beta-lactoglobulin: 50%–55%
• Alpha-lactalbumin: 15%–20%
• Bovine serum albumin: 5%–10%
• Immunoglobulins: Approximately 13%–15%
• Smaller amounts of specialised proteins such as lactoferrin, lysozyme and lactoperoxidase

3. Plant-Based Alternatives:

Tofu dates back to China’s Han era (206 BC–220 AD), while modern texturised vegetable protein was developed in the 1960s. The plant-based meat-alternative market grew by 50% in the early 21st century. Producing protein from legumes generates roughly 250 times fewer greenhouse-gas emissions than producing ruminant meat.

4. Protein Adulteration:

Standard nitrogen-based tests may not distinguish genuine protein from nitrogen-rich adulterants. Substances used to inflate apparent protein content include melamine (66.6% nitrogen), urea (46.62%), glycine (18.65%) and taurine (11.19%).

5. Supplement Usage:

During 2017–2018, 57.6% of US adults used dietary supplements, rising to 80.2% among adults over 60. The US supplement industry reached $61.1 billion in 2023, compared with the $670 billion pharmaceutical market.

Common Protein Myths

1. Animal Protein Is Always Superior:

Varied plant sources can collectively provide all essential amino acids needed for muscle growth. In a 2023–2024 survey of 721 gym-goers, 54.1% correctly identified the claim of animal protein’s absolute superiority as a myth.

2. Protein Timing Is Most Important:

Total daily protein intake and overall diet quality generally matter more than a narrow “anabolic window.” However, 64.4% of surveyed gym-goers incorrectly considered timing the most important factor for muscle growth.

3. High Protein Always Damages the Liver and Kidneys:

People with pre-existing liver or kidney conditions may require medical guidance. In healthy individuals, moderate whey-protein intake has not been shown to damage liver or kidney function.

4. Meat Is Necessary for Adequate Protein:

Foods such as soy, quinoa and spirulina, which contains 55%–70% protein, can provide complete or concentrated plant-based protein.

5. Whey Protein and Acne Are Unrelated:

Studies published in 2012, 2013 and 2017 reported an association between whey-protein consumption and increased acne severity, particularly among adolescents and bodybuilders. In reported cases, acne often improved only after supplementation was stopped.

The takeaway is simple:

Total daily intake, diet quality and the right protein source matter more than hype around timing or any single type.

Established Indian players such as MuscleBlaze and others offering everything from regular and beginner whey to raw whey, isolates, casein and plant protein. And with the Biozyme Performance Whey and Biozyme Iso-Zero series there are now more options to suit different diets, digestion needs and routines.

Sources:

• Antonio, J., Antonio, B., Aragon, A., Bustillo, E., Candow, D., Collins, R., Davila, E., Durkin, B., Kalman, D., Lockwood, C., Mills, S. and Stout, J.R. (2025) ‘Common questions and misconceptions about dietary supplements and the industry - What does science and the law really say?’, Journal of the International Society of Sports Nutrition, 22(1), p. 2534128. doi: 10.1080/15502783.2025.2534128.
• Arora, S., Kataria, P., Nautiyal, M., Tuteja, I., Sharma, V., Ahmad, F., Haque, S., Shahwan, M., Capanoglu, E., Vashishth, R. and Gupta, A.K. (2023) ‘Comprehensive Review on the Role of Plant Protein As a Possible Meat Analogue: Framing the Future of Meat’, ACS Omega, 8(26), pp. 23305–23319. doi: 10.1021/acsomega.3c01373.
• Cava, E., Padua, E., Campaci, D., Bernardi, M., Muthanna, F.M.S., Caprio, M. and Lombardo, M. (2024) ‘Investigating the Health Implications of Whey Protein Consumption: A Narrative Review of Risks, Adverse Effects, and Associated Health Issues’, Healthcare, 12(2), p. 246. doi: 10.3390/healthcare12020246.
• Lukacs, M., Zaukuu, J.-L.Z., Bazar, G., Pollner, B., Fodor, M. and Kovacs, Z. (2024) ‘Comparison of Multiple NIR Spectrometers for Detecting Low-Concentration Nitrogen-Based Adulteration in Protein Powders’, Molecules, 29(4), p. 781. doi: 10.3390/molecules29040781.
• Unger, A., Mosgan, C., Wolte, C., Pettauer, S. and Wilke, J. (2025) ‘Knowledge of gym goers on myths and truths in resistance training’, Scientific Reports, 15, p. 3401. doi: 10.1038/s41598-025-87485-8.
• Valavanidis, A. (2025) ‘Dietary Supplements and Health, Myths and Reality. Ensuring proper nutrition, and reduce risk of age-related disorders?’, Global Environmental Problems (Scientific Reviews).