Conclusion: There are very few long-term studies to date examining green or black tea for the primary prevention of CVD. The limited evidence suggests that tea has favourable effects on CVD risk factors, but due to the small number of trials contributing to each analysis the results should be treated with some caution and further high quality trials with longer-term follow-up are needed to confirm this.
PubMed 23780706 ↗Greens Powder
Based on 8 first-hand reports and 11 meta-analyses & systematic reviews in the medical literature. Ranked #1140 of 1,974 overall.
Of reports that state an outcome, 24% are positive.
What Greens Powder does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: The data from the two more rigorous trials, in conjunction with our re-analysis of original data suggests that GLM may be superior to placebo for the treatment of mild to moderate OA. As a credible biological mechanism exists for this treatment, further rigorous investigations are required to assess efficacy and optimal dosage.
PubMed 18222988 ↗Conclusion: There is little consistent and compelling evidence, to date, in the therapeutic use of freeze-dried green-lipped mussel powder products for rheumatoid or osteoarthritis treatment, particularly in comparison to other cheaper alternative nutriceutical supplements of proven efficacy. However, further investigations are necessary to determine whether green-lipped mussel supplements, such as Seatone, are therapeutic options in the management of arthritis.
PubMed 16220229 ↗Conclusion: Green tea could be a possible complementary method for treating acute radiation-induced diarrhea. Due to limitations, further studies with higher methodological quality and larger sample sizes are needed.
PubMed 33593083 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Greens powder”
“large doses of vitamin c daily along with some other antioxidants, collagen, vitamin d, greens powder, good amount of protein”
“Most of the powder was just apple fiber and stevia with trace amounts of the good stuff sprinkled in for label appeal.”
“I'd recommend a greens powder like those offered by Amazing Grass, Organifi, etc.”
“Get rid of those stupid stupid red and greens supplement. Such garbage.”
Top discussions (5)
- If I could go back 30 years this is what I’d do differently for health and well being ↗
- [I feel wasted!!] My expensive greens powder was basically flavored dust ↗
- Women in their 40’s, I need advice for exhaustion and brain fog. ↗
- I started checking third-party testing on everything I take. here's what I found out ↗
- I built the best stack I could (now NAC + Glycine are included too).....but I can't afford to buy these all again. Which ones should I get rid of? Are there 3 or 4 that are the most important? ↗
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User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate