Sweet Potato Powder
Also known as: Ipomoea batatas, purple sweet potato powder, PSP powder, PSPP
Effective Dosage
No established dose (insufficient research data)
What the Science Says
Sweet potato powder is a dried, concentrated form of sweet potato — often made from purple-fleshed varieties rich in anthocyanins, which are plant pigments with antioxidant properties. One animal study found that purple sweet potato powder added to a high-fat diet helped protect lacrimal (tear) gland function and reduced oxidative stress markers, suggesting a possible role in eye health. However, all available research comes from animal models or food science applications, so no human health benefits can be confirmed from the provided data.
What It Doesn't Do
No proven weight loss effect — the one animal study found it didn't reduce body weight or body fat. No human clinical trials support any health claim. Not proven to improve eye health in people. Not a substitute for medical treatment for dry eye disease or any other condition. The food-coloring and textile-dyeing research has zero relevance to human supplementation.
Evidence-Based Benefits
Purple sweet potato powder, rich in anthocyanins, showed potential to reduce oxidative stress and mitigate high-fat-diet-induced dry eye disease in an animal model by preserving lacrimal gland structure and function (PMID: 37108146). In food science applications, purple-fleshed sweet potato powder improved color and texture properties of cooked pork sausages and showed potential as a partial nitrite substitute (PMID: 25049698). Sweet potato powder has also been explored as a carbon substrate for microbial pigment production, suggesting its utility as a fermentation feedstock (PMID: 24781979).
Weak EvidenceEffective at: No established dose (insufficient research data)
Source: auto-research
Absorption & Bioavailability
Unknown — no human pharmacokinetic or absorption data in the provided studies
Red Flags to Watch For
- Zero human clinical trials in the available research — all health findings come from animal or lab studies
- Widely sold in over 1,000 registered supplement products despite almost no clinical evidence of benefit
- Animal study used 5% dietary inclusion, a dose that is difficult to translate meaningfully to human supplement capsules or powders
- Some papers in the evidence base are about textile dyeing and bacterial pigment production — completely irrelevant to human health
Products Containing Sweet Potato Powder
See how Sweet Potato Powder is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06