AG1 vs. IM8
The all-in-one, examined

01Snapshot & verdict

Both products sit at the very top of the market — roughly the same price, both NSF Certified for Sport, both vegan, both built on the same idea: a single daily scoop of vitamins, minerals, greens, probiotics and a long tail of "functional" extras. They are more alike than different. The decision comes down to a handful of nutrients that genuinely matter more with age, and to how much you value transparency versus completeness.

02Where they overlap

Strip away the branding and roughly 80% of these two products is the same concept executed two ways. Both are, at heart, a comprehensive multivitamin wrapped in a greens-and-fruit powder, dusted with the same fashionable extras.

Both are also sensibly iron-free, which is exactly right for a post-menopausal woman: iron needs fall sharply after menopause and excess iron can accumulate and harm the liver, heart and joints.22 And both omit one nutrient that genuinely matters at this age — omega-3 (EPA/DHA) — which you'd still want from oily fish or a fish/algae-oil capsule.22

03The real differences

These are the points that actually separate them. The "edge" tag reflects which product is stronger on that line for a healthy older woman.

04Vitamins & minerals, side by side

Per daily serving. A blank cell means the nutrient isn't declared on that product's label. Percentages are shown as printed on each label.

Reading: IM8 carries the broader, generally higher-dosed mineral panel and the only vitamin D and iodine. AG1 leads on vitamin E and provides a meaningful 2.6 g of plant protein that IM8 lacks. Several of these megadoses (e.g., 1,000–8,333% of water-soluble B and C) exceed what the body can use in a day — the surplus is simply excreted.2

05The evidence, ingredient by ingredient

What does the research actually support — and at what dose? Each card weighs the strength of evidence and notes whether the products deliver an amount that matches the studies.

06If you're a woman in your mid-60s

Here's how the comparison maps onto the priorities that genuinely shift with age — and where a daily all-in-one helps versus where it doesn't.

• Bone & cardiovascular health (post-menopause). The trio that matters is vitamin D + K2 + adequate calcium. IM8 supplies vitamin D (2,000 IU) and a quantified 100 µg K2; AG1 supplies neither D nor a stated K2 amount in the scoop. Neither provides enough calcium (~120–150 mg vs a ~1,200 mg/day target) — you'll still rely on diet or a separate calcium source.1322
• B12 absorption declines with age. Atrophic gastritis makes older adults absorb less B12 from food; 500–1,000 µg is a common practical target.20 Both products clear the bar easily; IM8's 200 µg vs AG1's 50 µg both far exceed daily needs.
• Iron: rightly absent from both. Post-menopausal women generally should not supplement iron — both products are iron-free, which is exactly correct.22
• Omega-3 is missing from both. EPA/DHA (~1,000 mg/day) supports heart, brain and joints after menopause and isn't in either scoop — keep oily fish or a fish/algae-oil capsule in the routine regardless of which you pick.22
• Heart & statins. If you take a statin, IM8's 100 mg CoQ10 is the more useful dose (though both use the less-absorbed ubiquinone form).12
• Joints & mood. IM8's clinically-dosed MSM (1,500 mg) and saffron (30 mg) are small but real perks if achy joints or low mood are on your radar.1716
• Watch fat-soluble totals. Vitamin A is one to keep an eye on if you also take other supplements; AG1's 250 µg is modest, IM8's 900 µg is at 100% — fine alone, but tally your total intake across products.

07The recommendation

If you want one all-in-one scoop and you're a healthy woman in your mid-60s, IM8 is the better single choice — chiefly because of what it includes that AG1 leaves out of the powder. But the honest, money-conscious answer has a second layer, below.

The fuller, more honest answer

Both are excellent multivitamins at a luxury price wrapped in greens and botanicals that are mostly under-dosed. For ~$80–90 a month, you're paying largely for the multivitamin core, the convenience, and the brand. A capable generic multivitamin plus targeted vitamin D, omega-3, and adequate calcium would cover the essentials for far less, with each component dosed precisely.

So the decision tree is simple:

• If you'll commit to exactly one product and nothing else → IM8. It's the most complete single scoop for an older woman because it doesn't make you buy vitamin D separately and it adds iodine, K2, electrolytes and a couple of genuinely-dosed extras.
• If you already take vitamin D (and perhaps omega-3) → AG1. With D handled elsewhere, AG1's transparency, track record, protein and superior probiotic strains make it the more trustworthy daily base.
• If value and precision matter most → neither. A quality multivitamin + standalone vitamin D + fish/algae oil + dietary calcium will out-dose both for a fraction of the cost. Choose AG1/IM8 for the convenience and ritual, not because the science demands them.

08References

A note on evidence quality: brand pages (AG1, IM8) are used only for product facts such as testing and price; health claims are weighed against peer-reviewed journals, NIH/Oregon State references, and independent reviews. Independent reviews are interpreted with appropriate skepticism, as the request asked.