How we read a label

Where the number goes missing.

Five families, five ways the same trick gets played. Here's what the big number on the front actually refers to, what the number that matters is, and how to tell them apart on any bottle, ours included.

Five families

Start with the percentage.

Every figure on this page is printed on the manufacturer's own label. Where the number can also be checked against molecular weight, we've checked it. Where a product doesn't declare one, we say so instead of estimating.

Mg 11.0%

Magnesium

A bottle doesn't contain magnesium: it contains a magnesium salt. Ours is glycinate, magnesium bound to glycine, which comes in through the amino acid pathway instead of the mineral one.

The label says 2,500 mg. The magnesium in it is 275 mg. That is 11% of the weight, and it's the number we print, because it's the only one you can compare against another bottle. Cheap bottles use oxide, which is 60% magnesium by weight and absorbs at under 5%: the big number writes itself.

Elemental Mg
275 mg elemental magnesium per 3-capsule serving, from 2,500 mg of glycinate.
Confused with
With "magnesium 500 mg", which is the weight of the salt, not of the magnesium.
When to take it
At night. Glycinate is the form that is gentlest on the stomach.
300 mg

Omega-3 EPA/DHA

The oldest trick in the aisle: the front of the bottle shouts 1,000 mg of fish oil, and fish oil is not the active ingredient. EPA and DHA are.

Ours declares 180 mg of EPA and 120 mg of DHA per serving. That is the figure that belongs on the front, so that's where we put it.

Elemental Mg
180 mg EPA + 120 mg DHA per serving. 300 mg of actual omega-3.
Confused with
With the total milligrams of oil, which tell you nothing.
When to take it
With meals, twice a day. Fat-soluble, so not on an empty stomach.
5% withanolides

Ashwagandha

Two bottles of the same plant tell the whole story. One is KSM-66 standardized to 5% withanolides: 600 mg of extract, 30 mg of the compound the research is actually about.

The other is plain organic root, unstandardized. It may be perfectly good and it costs less, but nobody can tell you how much withanolide is in it, including us. So it ships without a bar. An empty bar is more honest than an invented number.

Elemental Mg
30 mg withanolides from 600 mg of KSM-66 extract. The unstandardized root: unknown.
Confused with
With "1,300 mg ashwagandha", which is root powder weight, not extract strength.
When to take it
Daily, with food. It works on a timescale of weeks, not hours.
40% polysaccharides

Lion's Mane

Mushroom supplements are where the gap gets widest, because "mushroom" can mean fruiting body, mycelium, or the grain the mycelium grew on.

Ours is standardized to 40% polysaccharides, which is 400 mg per serving and is stated on the label. When a bottle doesn't say a percentage at all, that silence is the answer.

Elemental Mg
400 mg polysaccharides per serving, standardized to 40%.
Confused with
With mycelium-on-grain products, which are mostly grain.
When to take it
Daily, morning or with food.
50% trans

Resveratrol

Resveratrol comes in two shapes and only one of them is the one in the studies: trans-resveratrol.

A 600 mg complex standardized to 50% gives 300 mg of trans-resveratrol. A bottle that says "600 mg resveratrol" and nothing else is telling you about the complex, not about the compound.

Elemental Mg
300 mg trans-resveratrol from a 600 mg complex.
Confused with
With the weight of the whole knotweed complex.
When to take it
Twice a day, with food.

How we work

Four rules with a number attached.

A value without a number is a nice sentence. These you can check.

  • %

    The real dose, always first

    On the product page, on the card and in search. It's the only figure you can compare between two bottles, and it's exactly the one the category hides behind the weight of the capsule.

  • 0

    Proprietary blends

    If a product won't say how many milligrams of each ingredient it contains, it doesn't ship. We've turned down a turmeric and two probiotics on this rule alone. That blend exists so the expensive ingredient can appear in a token amount.

  • FDA

    Claims we can stand behind

    Structure/function claims only, worded conservatively, filed with the FDA and printed with the required disclaimer. Anything that sounds like treating a disease is off the table, whatever the internet says.

  • Blank

    An empty bar beats a made-up one

    Some products have no published standardization, and some have no absorption research. Those ship with the bar left short or missing. Filling it in with an estimate would be the exact trick this store exists to point at.

Cut to the chase

The categories, at a glance

By ingredient

Magnesium 0 Omega-3 (EPA/DHA) 0 Ashwagandha 0 Lion's Mane 0 Creatine 0 CoQ10 0 Collagen 0 Berberine 0 Resveratrol 0 Vitamin D3 0

By purpose

Relaxation & sleep 0 Energy 0 Muscle & recovery 0 Focus 0 Skin & joints 0 Daily essentials 0

By format

Capsules 0 Softgels 0 Powder 0 Gummies 0 Drops 0 Strips 0

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