BioStacks
Source Naturals

SAMe 400 mg

1 Tablet · 30 servings · $1.06/serving

iHerbAmazon

Best for

Stress & Mood

Ingredients (1)

SAMe

50%

Dose

400 mg

Target

800–1600 mg

Form

Not listed

Other Ingredients (11)

Titanium DioxideColorant

Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.

MannitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Yellow OchreColorant

Natural iron-oxide mineral pigment used to color tablet coatings and capsule shells a yellow-tan hue

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Citric AcidAcidulant

Natural acid derived from citrus fruits

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

How to Take It

Best taken in the morning

Take in the morning on an empty stomach — it can be activating and may disturb sleep later in the day.

On an empty stomach
Space it a couple of hours from 5-HTP

On the label

1 tablet 1 to 3 times daily. Take tablets on an empty stomach.

Do not combine with St. John's Wort

Each of these raises serotonin activity on top of St. John's Wort, and together they can trigger serotonin syndrome — agitation, rapid heartbeat, raised blood pressure. Not without medical supervision.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$31.87

$20$50$100

Near the median of 22 SAMe supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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