This **SAMe** tablet delivers 400mg of active S-adenosylmethionine, the best-studied natural compound for low mood, where trials have found it comparable to prescription antidepressants. That 400mg sits at the floor of the 400–1,600mg studied range — a real, usable dose, though most mood and joint-pain trials run higher.

The label's one-to-four-tablets-a-day window lets you climb to 800–1,600mg, where the strongest evidence for both depression and osteoarthritis sits; two tablets daily is a sensible target. The enteric-coated tosylate form matters, since SAMe is chemically fragile — take it on an empty stomach for best absorption.

One real caveat: SAMe can trigger mania in people with bipolar disorder, and combined with SSRIs or other antidepressants it raises serotonin-syndrome risk. If you take any mood medication, talk to your doctor first.

BioStacks
Swanson

SAMe 400 mg

1 Tablet · 30 servings · $1.03/serving

iHerbAmazon

Best for

Stress & Mood

Ingredients (1)

SAMe

50%

Dose

400 mg

Target

800–1600 mg

Form

Premium

Other Ingredients (12)

Propylene GlycolSolvent

Liquid used to dissolve and preserve supplement ingredients

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Ascorbic AcidAntioxidant

Vitamin C used as an antioxidant preservative in supplements to prevent oxidation

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

Citric AcidAcidulant

Natural acid derived from citrus fruits

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

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

As a dietary supplement, take one tablet one to four times per day with water.

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

$30.79

$20$50$100

Cheaper than 65% of 24 SAMe supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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