About
What it is and where it shows up.
Hydrolysed groundnut protein is produced by acid, enzymatic, or alkaline hydrolysis of defatted groundnut (peanut) meal, breaking down proteins into shorter peptides and free amino acids. It is used primarily as a flavour enhancer and savoury taste contributor (umami) in soups, sauces, seasonings, and processed foods.
Safety summary
The regulatory and scientific consensus.
For the general adult population, hydrolysed groundnut protein is considered safe at normal dietary intake levels, with no established ADI and broad regulatory acceptance as a flavouring/protein ingredient. The primary safety concern is its peanut origin, which means it retains allergenic potential and must be declared on labels for the protection of peanut-allergic individuals. Acid-hydrolysed variants may contain trace levels of 3-monochloropropane-1,2-diol (3-MCPD), a processing contaminant subject to Codex and EU maximum limits.
Regulatory landscape
What food-safety regulators have decided.
| Jurisdiction | Status | Note |
|---|---|---|
| FSANZ (Food Standards Australia New Zealand) (Australia) | Approved | Hydrolysed vegetable proteins are permitted food ingredients under FSANZ Food Standards Code. Peanut-derived ingredients must be declared as allergens under Standard 1.2.3 of the Australia New Zealand Food Standards Code.source |
| EFSA (European Food Safety Authority) (European Union) | Approved | Hydrolysed vegetable proteins including groundnut are permitted as flavouring preparations under EU flavouring regulation. Peanut is a listed allergen under Annex II of Regulation (EU) No 1169/2011 requiring mandatory declaration. Acid-hydrolysed protein products are subject to 3-MCPD limits under Regulation (EC) No 1881/2006 as amended.source |
| FSSAI (Food Safety and Standards Authority of India) (India) | Approved | Hydrolysed plant protein (which includes groundnut as a permitted source) is explicitly listed as an approved optional ingredient in cereal and cereal-based products under FSS (Food Products Standards and Food Additives) Regulations, 2011. Groundnut is a notifiable allergen under FSSAI labelling regulations.source |
| FDA (Food and Drug Administration) (United States) | Approved | Hydrolysed vegetable protein (including groundnut) is listed in FDA's Substances Added to Food inventory. Must be declared by its specific common or usual name (e.g. 'hydrolyzed peanut protein') on the ingredient label per 21 CFR 101.4. Peanut is a major food allergen requiring mandatory label declaration under FALCPA (21 USC 343). |
Who should approach with care
Whose guidance would steer them away.
Nut Allergy — Peanut (groundnut) is a major food allergen, and hydrolysed groundnut protein retains allergenic proteins capable of triggering IgE-mediated reactions, including anaphylaxis, in peanut-sensitised individuals; mandatory declaration is required under FDA, FSSAI, and EU labelling law.
Infants — Introduction of peanut-derived protein products to infants, particularly those with eczema or existing food allergies, should follow clinical guidance (e.g., LEAP trial recommendations) to manage sensitisation risk.
Pregnancy — Pregnant women with a personal or family history of peanut allergy should consult a doctor before consuming hydrolysed groundnut protein, as peanut allergens may be relevant to foetal sensitisation.
Kidney Disease — Hydrolysed protein products contribute to dietary protein load and free amino acids; patients with chronic kidney disease on protein-restricted diets should limit consumption of protein hydrolysate-containing foods.
Hypertension — Hydrolysed groundnut protein is commonly used in high-sodium processed foods (soups, sauces, seasonings), meaning regular consumption may contribute to elevated sodium intake relevant to blood pressure management.
Research citations
The sources behind this verdict.
- 1WHO. JECFA – Flavouring Agents: Hydrolysed Vegetable Protein. fao.org
- 2FDA. Substances Added to Food Inventory: Protein, Vegetable, Hydrolyzed. hfpappexternal.fda.gov
- 3FSSAI. Food Safety and Standards (Food Products Standards and Food Additives) Regulations, 2011 – Chapter 2.4: Cereals and Cereal Products. fssai.gov.in
- 4PubMed. Peanut Allergy: Clinical Immunology Review, 2019. pubmed.ncbi.nlm.nih.gov
- 5EFSA. EFSA CONTAM Panel: Risks for human health related to the presence of 3- and 2-monochloropropanediol (MCPD) and their fatty acid esters, and glycidyl fatty acid esters in food, 2018. efsa.onlinelibrary.wiley.com
Independently researched5 citations