Supplement analysis backed by scientific evidence · PT

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Limited evidencePhysical performance

Sunflower Seed Protein

A hypoallergenic seed protein used in allergen-free powders. No human supplement trial exists; the case for it rests on general plant-protein data and laboratory digestibility work.

Evidence last reviewed: August 2026

What the science says

  • No human trials of the isolate Limited evidence

    No randomized human trial has tested sunflower seed protein for muscle, satiety or any other supplement outcome. What exists is food-science characterisation of the ingredient.

  • Laboratory digestibility is reasonable Limited evidence

    A comparative in-vitro digestion study of oilseed protein concentrates and isolates, sunflower among them, found digestibility broadly comparable across preparations. In-vitro digestion does not predict clinical outcomes.

  • Plant protein in general supports lean mass Moderate evidence

    A meta-analysis of 16 RCTs found plant and animal protein equivalent for absolute lean mass and strength when total protein intake is adequate. Sunflower protein was not among the sources tested.

Dosage & safety

Studied doseTypical label dose is 20–30 g of protein per serving. No studied dose exists.
SafetySunflower seed allergy is uncommon but real. Sunflower protein is relatively low in lysine, so it is best combined with other protein sources rather than used as the sole one.

Scientific references

Where to buy

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