Dried vegetable, algae and grass concentrates in one serving. Nutritious, but trial evidence for health outcomes is nearly empty.
A reasonable top-up, a poor substitute. Pay attention to whether the label tells you what is actually in it.
Greens blend (Greens Blend (proprietary)) is a botanical / gut with evidence grade D, meaning it is primarily supported by animal studies. We track 1 products containing Greens blend. Typical doses range from 4000 to 4000 mg per serving. The top-ranked product scores 6.0 out of 10 on our composite scale (dose, evidence, price, testing, transparency). Prices range up to $99.00 per month.
| Product | Brand | Dose | Price/mo | 3rd-party tested | Score |
|---|---|---|---|---|---|
| AG1 Foundational Nutrition | AG1 (Athletic Greens) | 4000 mg | $99.00 | Yes | 6.0 |
Scores are editorial judgments, not a scientific standard. See how we score.
A mix of powdered greens — spirulina, chlorella, wheatgrass, spinach, broccoli and similar — dried and concentrated. Marketed as covering your vegetable bases.
The individual components contain real nutrients and some (spirulina) have small human trials on lipids and inflammation. But the blend as a product has essentially no outcome trials, and one scoop delivers far less than the vegetable servings it is compared to in marketing.
A reasonable top-up, a poor substitute. Pay attention to whether the label tells you what is actually in it.
Dehydrated concentrate of green vegetables, grasses and algae. Micronutrient content depends entirely on composition, which is usually proprietary.
Component-level data exists (spirulina meta-analyses on lipids, chlorella trials on blood pressure) at gram-level doses. Greens blends typically deliver components in sub-gram amounts. Product-level RCTs (AG1 2025) establish safety and microbiome shifts but not clinical outcomes. No greens blend has a published RCT showing improvement in a hard health endpoint.
Varies by constituent.
Marketing compares one scoop to '5 servings of vegetables' — the fiber, volume, and satiety of actual vegetables are not in the scoop. Heavy-metal testing matters for algae components.
The trial dose above is our editorial pick from the published human trials for this ingredient. We choose the dose that the best-available studies used on the endpoint most relevant to longevity. The range shows the lowest and highest doses tested in published trials. The landmark studies below are the papers we read to set it. You can click through and check our work.
When new trials publish, our automated sweeps flag them. If a new study materially changes the dose, we update it through editorial review and record the old dose, new dose, and the triggering study in every affected product's recommendation history. The dose is never changed automatically.
Regulatory events, evidence grade changes, and key research milestones for Greens blend, most recent first. Studies link to the paper; regulatory entries name and link the responsible authority.
Randomized controlled trial of a flagship greens product: no negative impact on blood safety biomarkers in healthy adults over 4 weeks.
Read study →Double-blind placebo-controlled trial: greens supplementation shifted gut microbiome composition without changing clinical endpoints.
Read study →All products in our catalog that contain Greens blend, ranked by our overall score. Ranking is editorial, never paid.
AG1 (Athletic Greens)CFU not stored
Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.
Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.
Molecules in the same class, plus the actives most often formulated alongside Greens blend in our catalogue.
See Greens blend in context: the mechanism it acts through, the biomarker it moves, the products that dose it, and the trials that tested it.
View Greens blend on the Longevity Map →A mix of powdered greens — spirulina, chlorella, wheatgrass, spinach, broccoli and similar — dried and concentrated. Marketed as covering your vegetable bases.
The trial dose in published human studies is None mg per day, with a range of None to None mg per day. Always consult a qualified clinician before starting any supplement.
Marketing compares one scoop to '5 servings of vegetables' — the fiber, volume, and satiety of actual vegetables are not in the scoop. Heavy-metal testing matters for algae components.
We track 1 products containing Greens blend. The top-ranked product scores 6.0 out of 10 on our composite scale, which evaluates dose, evidence, price, third-party testing, and transparency. See the comparison table above. Scores are editorial judgments, not a scientific standard.
Greens blend has evidence grade D, meaning it is primarily supported by animal studies. Grade A means replicated human RCTs with hard endpoints. Grade B means human RCTs with biomarker outcomes. Grade C means mixed or small human trials. See our evidence grading methodology.
Evidence grades are reviewed when new human RCTs are published. Product counts update automatically as new products are added. Dose ranges reflect published trial data, not brand recommendations. Read how we verify.