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Pea protein

Supplement protein fitness
Aka: pea protein isolate
Brands seen in Singapore: California Gold Nutrition, NOW Foods, Micro Ingredients, Nutricost, NaturesPlus
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
A plant protein for strength work · evidence still thin
When to take
One serving a day in the trial
Take with
Water · 20–22.5 g per serving in that trial
Studied for
The trial ran 84 days
Pros & cons
Pros
  • 84-day trial: strength gains comparable to whey
  • Both products were safe and well tolerated in it
  • A dairy-free route when whey is off the table
Cons
  • ISSN 2017: research on pea protein is limited
  • Trial funded by a pea protein manufacturer
  • Sedentary adults, 84 days — not trained lifters
Sources
  1. Singh et al., Nutrients 2024 — pea vs whey protein with resistance training (PMC11243455), abstract · read 2026-08-27
    what it says
    “Eighty-four days of PPr supplementation resulted in improvements in strength and muscle mass comparable to WPr when combined with a resistance training program in a population of healthy sedentary adults”
  2. Singh et al., Nutrients 2024 — between-group result · read 2026-08-27
    what it says
    “There were no significant differences in the change in WBMS, muscle mass, or product perception and likability scores between the PPr and WPr groups”
  3. Singh et al., Nutrients 2024 — safety outcome · read 2026-08-27
    what it says
    “Both study products were safe and well-tolerated in the enrolled population”
  4. Singh et al., Nutrients 2024 — investigational products and dosing · read 2026-08-27
    what it says
    “vanilla contained 20.0 g of pea protein; chocolate contained 22.5 g of pea protein … The participants were instructed not to exceed more than one dose per day”
  5. Singh et al., Nutrients 2024 — rationale · read 2026-08-27
    what it says
    “However, due to allergies, dietary restrictions/personal choices, and growing demand, alternative protein sources are warranted”
  6. Singh et al., Nutrients 2024 — funding statement · read 2026-08-27
    what it says
    “This study was funded by Roquette Canada, LTD”
  7. ISSN position stand: protein and exercise (Jäger et al., JISSN 2017) — plant protein sources · read 2026-08-27
    what it says
    “In addition to soy, other plant sources (e.g., pea, rice, hemp, etc.) have garnered interest … research that examines the ability of these protein sources to modulate exercise performance and training adaptations is limited at this time”
  8. ISSN position stand: protein and exercise (Jäger et al., JISSN 2017) — safety section · read 2026-08-27
    what it says
    “people in renal failure benefit from protein-restricted diets, but extending this pathophysiology to otherwise healthy exercise-trained individuals who are not clinically compromised is inappropriate”
  9. NIH ODS — Dietary Supplements for Exercise and Athletic Performance (Health Professional), protein safety (updated 1 Apr 2024) · read 2026-08-27
    what it says
    “The Food and Nutrition Board has not set a UL for protein, noting that the risk of adverse effects from excess protein from food is very low”
  10. FDA — Daily Value on the Nutrition and Supplement Facts Labels, Reference Guide: Daily Values for Nutrients (content current as of 03/05/2024) · read 2026-08-27
    what it says
    “DVs are the recommended amounts of nutrients to consume or not to exceed each day … Protein | 50g”
  11. HSA — Guidelines on Prohibited and Restricted Ingredients in Health Supplements and Traditional Medicines, GL-CHPB-1-012 Rev 001 (Oct 2025), Annexes A/B · read 2026-08-27
    what it says
    “The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list”
  12. iHerb Singapore — Pea Protein category page, default sort · read 2026-08-27
    what it says
    “Pea Protein Powder & Vegan Shakes | iHerb … 1 - 47 of 47 results”
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Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.