Spirulina “Significantly Improves Weight" in New Study

Brad Stanfield

Oct 8, 2025

Episode description

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Timestamps:
0:00 New Spirulina Meta-Analysis
4:18 Additional Perspective From Another Meta-Analysis
4:49 Spirulina Dosing
6:10 Dr Brad's Approach to Spirulina

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Here are the links to the research papers referenced in the video:
https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1624982/full
https://pmc.ncbi.nlm.nih.gov/articles/PMC3136577/
https://pmc.ncbi.nlm.nih.gov/articles/PMC10178199/
https://pmc.ncbi.nlm.nih.gov/articles/PMC5497590/
https://www.sciencedirect.com/science/article/pii/S0965229925001189
https://www.sciencedirect.com/science/article/abs/pii/S093947532500211X
https://pmc.ncbi.nlm.nih.gov/articles/PMC10201678/

Thumbnail by James Kelly
Video edited by Troy Young
Script by John Milliken

The links above are affiliate links, so I receive a small commission every time you use them to purchase a product. The content contained in this video, and its accompanying description, is not intended to replace viewers’ relationships with their own medical practitioner. Always speak with your doctor regarding the content of this channel, and especially before using any products, services, or devices discussed on this channel.

Mindsip insights from this episode:

Combine spirulina with exercise to enhance cholesterol management

Combining spirulina with exercise provides additional benefits, raising good (HDL) cholesterol higher and lowering bad (LDL) cholesterol more than taking spirulina alone.

#exercise

#spirulina

Choose DASH diet and fiber supplements to lower LDL cholesterol

The DASH diet and fiber supplements have much stronger, higher-quality evidence for lowering LDL cholesterol compared to spirulina.

#cholesterol

#fiber

Choose spirulina brands that pass quality and purity tests

An independent lab, ConsumerLab.com, found that only two out of five tested spirulina supplement brands passed their quality and purity tests for content and contaminants.

#spirulina

#supplement

Supplement with 2-3 grams of spirulina daily for 7-8 weeks

For those who choose to supplement, a daily dose of 2-3 grams of powdered spirulina for a minimum of 7-8 weeks is recommended to see potential improvements.

#spirulina

#supplement

Question spirulina's effectiveness due to low evidence quality

Recent meta-analyses rate the quality of evidence for spirulina's main findings as "low to very low" due to high differences between studies, meaning confidence in the results is not high.

#spirulina

Recognize spirulina's limited impact on weight loss

Despite being statistically significant, spirulina's effect on weight loss is clinically small, resulting in about a 2kg reduction, which is half of what is considered a meaningful amount.