AG1 vs a Multivitamin and Other Greens Powders: What Are You Actually Getting?

AG1 vs Multivitamin at a Glance

Doses above are from the current U.S. Drug Facts or prescribing labels listed in Sources. Always follow the label on the package you buy, because store brands and formulations differ.

What AG1 Next Gen Contains

AG1 relaunched as “Next Gen” in 2025 with a 13 g scoop. The U.S. label lists 40 calories, 2 g fiber and a broad set of vitamins and minerals, plus probiotic strains and plant ingredients; the brand says the formula has 83 ingredients. Several nutrients are well above the Daily Value (for example vitamin C at 467% DV and biotin at 1100% DV), which is generally safe for water-soluble vitamins in healthy adults but worth noting if you also take other supplements. Vitamin D is not in the Next Gen U.S. panel; AG1 sells it separately.

Verification

AG1 Next Gen is listed in NSF’s Certified for Sport directory, which means NSF tested it for label accuracy, contaminants and substances banned in sport and audits the facility. That is a meaningful quality signal that many greens powders lack. It does not mean the product improves health outcomes; it means the contents match the label.

What the Evidence Says

• Multivitamins: The NIH Office of Dietary Supplements notes that multivitamins help people meet nutrient needs, but most studies have not found they prevent chronic disease in well-nourished adults. A large 2022 U.S. Preventive Services Task Force review reached a similar conclusion.
• AG1-specific trials: AG1 cites company-funded studies on nutrient status and gut markers. Small, sponsor-funded trials are a starting point, not proof of broad benefit.
• Probiotics: Benefits are strain- and condition-specific; NCCIH notes evidence is strongest for certain diarrhea conditions, not general wellness.
• Proprietary blends: When botanicals are listed only within a blend total, you can’t compare their doses with those used in studies.

How to Read Any Supplement Facts Label

• Serving size first. Every amount on the panel is per serving, and a serving may be two capsules, two gummies or one scoop. Compare brands per serving you will actually take.
• %DV is not a target to exceed. The Daily Value is a reference amount. Going far above 100% is rarely useful and, for some nutrients, approaches the Tolerable Upper Intake Level (UL) set by the National Academies, which the NIH Office of Dietary Supplements lists in each fact sheet.
• Check the form. Labels now list vitamin A in mcg RAE and folate in mcg DFE. For vitamin A, the UL of 3,000 mcg RAE applies to preformed vitamin A (retinol/retinyl esters), not beta-carotene, per ODS.
• “Proprietary blend” hides amounts. Only the total blend weight must be listed, so you can’t tell how much of each ingredient you get.
• Manufacturing rules are the floor. All U.S. supplement makers must follow FDA’s current Good Manufacturing Practice rule (21 CFR Part 111), but FDA does not test products before sale. Third-party seals (USP Verified, NSF) are an independent check that the label matches the contents.

Safety Checks Before You Buy

• Biotin and lab tests. The FDA warns that biotin in supplements can cause falsely high or low results on some lab tests, including falsely low troponin results used to diagnose heart attacks. Tell your clinician and lab if you take a multivitamin or hair/skin/nail product with biotin.
• Vitamin K and warfarin. ODS notes vitamin K can reduce the effect of warfarin; people on warfarin should keep vitamin K intake consistent and check with their prescriber before starting a multivitamin that contains it.
• Iron and children. FDA requires iron-containing supplements to carry a warning that accidental overdose is a leading cause of fatal poisoning in children under 6. Store all supplements, especially gummies, out of reach.
• Stacking products. Taking a multivitamin plus a greens powder plus single-nutrient pills can quietly push vitamin A, niacin, zinc or vitamin B6 toward or above the UL. Add up totals across everything you take.

Who Should Choose What

• You want simple nutrient insurance: a USP Verified or NSF-certified multivitamin, plus vitamin D if your clinician recommends it.
• You like a daily drink habit and want certified probiotics plus vitamins in one: AG1 is a reasonable, certified option.
• Competitive athlete: choose NSF Certified for Sport or Informed Sport products only; AG1 qualifies.
• You want vegetables: no powder replaces eating them; the fiber in AG1 (2 g) is small relative to the 25–34 g/day Dietary Guidelines target.

Also comparing: Nature Made vs Thorne vs Garden of Life and Ritual vs Olly.

When to Talk to Your Doctor or Pharmacist

• You take warfarin or other blood thinners (greens and vitamin K content can matter) or other prescription drugs.
• You are pregnant, breastfeeding, or immunocompromised (ask before taking probiotics).
• You have kidney disease (potassium, phosphorus and minerals).
• You are already taking other multivitamins or single nutrients — avoid doubling up.

Frequently Asked Questions

Sources

• AG1: Next Gen Supplement Facts (manufacturer label)
• NSF Certified for Sport: AG1 Next Gen listing
• NIH ODS: Multivitamin/mineral Supplements Fact Sheet
• NCCIH: Probiotics: What You Need To Know
• PubMed: USPSTF 2022, vitamin and mineral supplementation to prevent cardiovascular disease and cancer
• FDA: Dietary Supplements — what you need to know
• 21 CFR Part 111: Current Good Manufacturing Practice for dietary supplements
• NIH Office of Dietary Supplements: Vitamin A Fact Sheet
• NIH Office of Dietary Supplements: Vitamin K Fact Sheet
• FDA: Biotin may interfere with lab tests (safety communication, updated 2019)
• 21 CFR 101.17(e): required warning on iron-containing supplements
• NIH Office of Dietary Supplements: Multivitamin/mineral Supplements Fact Sheet

Related Comparisons

• Nature Made vs Thorne vs Garden of Life
• Ritual vs Olly
• Multivitamin Guide
• Probiotics vs Prebiotics
• All Supplements Comparisons