Protein Concentrate

About

What it is and where it shows up.

Protein concentrate is a broad class of food ingredient produced by removing non-protein constituents (water, lactose, ash, fat) from animal- or plant-derived sources such as whey, milk, legumes, or oilseeds via filtration, centrifugation, or extraction, yielding a powder typically containing 55–90% protein by dry weight. It is used to fortify the protein content of foods such as beverages, baked goods, infant formula, sports nutrition products, and meal replacements.

Safety summary

The regulatory and scientific consensus.

Protein concentrates are broadly recognized as safe for the general adult population, with no established Acceptable Daily Intake (ADI) restriction; safety is considered self-limiting as protein intake is governed by physiological need. The primary safety concern is allergenicity, as concentrates derived from milk, soy, peanut, wheat, egg, or other allergenic sources retain the allergenic potential of their source and must be labelled accordingly under major regulatory frameworks. Individuals with kidney disease or impaired protein metabolism should moderate intake and consult a physician, as high protein loads may exacerbate these conditions.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Approved	Protein concentrates are regulated as foods or food ingredients (not food additives) in the EU and thus do not carry an E number. Novel protein concentrate sources (e.g., rapeseed protein–fibre concentrate) require individual safety assessment by the EFSA NDA Panel under Regulation (EU) 2015/2283 on novel foods before market authorisation. Allergen labelling is mandatory under Annex II of Regulation (EU) No 1169/2011 for concentrates derived from the 14 major allergenic sources.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	FSSAI issued the 13th Amendment to FSS (Food Products Standards and Food Additives) Regulations, 2011, inserting sub-regulations 2.1.21 and 2.1.22 specifying compositional, quality, and labelling standards for Milk Protein Concentrate and Whey Protein Concentrate under the Dairy Products and Analogues category. Legume protein isolates/concentrates/hydrolysates are also permitted as nutraceutical ingredients under the Health Supplements and Nutraceuticals Regulations.source
FDA (Food and Drug Administration) (United States)	Approved	Whey protein concentrate is affirmed GRAS under 21 CFR 184.1979 and 184.1979c for use in food generally, with no limitation other than current good manufacturing practice (cGMP). Pea protein concentrate (GRN 000608) and milk protein concentrate/isolate (GRN 000504) also hold GRAS status. No ADI or daily maximum is set; use is self-limiting by nutritional need.source

Who should approach with care

Whose guidance would steer them away.

Kidney Disease — High protein intake can increase the glomerular filtration burden; individuals with chronic kidney disease or impaired renal function are typically advised by clinicians to restrict dietary protein, and high-protein concentrate supplements can make this difficult to control.

Liver Disease — Patients with advanced liver disease (e.g., hepatic encephalopathy) may have impaired amino acid metabolism and should restrict protein intake under medical supervision, making concentrated protein supplementation potentially harmful.

Infants — Protein concentrates used in infant formula are subject to strict EFSA and FDA compositional controls; unsupervised use of adult-grade protein concentrate powders in infant feeding is not appropriate and could deliver excessive protein loads to immature kidneys.

Phenylketonuria — Protein concentrates derived from high-phenylalanine sources (e.g., whey, casein, soy) are contraindicated in phenylketonuria as they deliver large amounts of phenylalanine that cannot be metabolised safely.

Research citations

The sources behind this verdict.

1FDA. Agency Response Letter GRAS Notice No. GRN 000633 – Concentrated Milk Protein (cMP≥W60:C40). fda.gov
2FDA. Agency Response Letter GRAS Notice No. GRN 000608 – Pea Protein Concentrate (PPC). fda.gov
3EFSA. Safety of rapeseed protein–fibre concentrate as a novel food pursuant to Regulation (EU) 2015/2283, 2024. efsa.europa.eu
4PubMed. Novel foods, food enzymes, and food additives derived from food by-products of plant or animal origin: principles and overview of the EFSA safety assessment, 2024. pmc.ncbi.nlm.nih.gov
5FSSAI. FSSAI 13th Amendment – Standards for Milk Protein Concentrate and Whey Protein Concentrate (FSS Food Products Standards and Food Additives Regulations, 2011), 2018. archive.fssai.gov.in

Independently researched5 citations