
NOW Foods Supplements, SAMe (S-Adenosyl-L-Methionine)200 mg…
Cost per serving
$0.33
60 servings · ~60-day supply
SAM-e (S-adenosylmethionine) is a methyl donor taken for mood as well as joints. Below, the sam-e products people use ranked by real cost per dose (to the commonly-studied 800 mg dose). A value comparison, not medical advice.
Updated September 2026
Some trials support SAM-e for depressive symptoms, but it can trigger mania in people with bipolar disorder and interacts with antidepressants (serotonin syndrome risk). Promising but not a self-prescribe supplement — discuss with a clinician first.
Commonly used: 400–1,600 mg/day, under guidance.
How this list is built: these are sam-e products ranked by real cost per dose across our whole sam-e catalogue — not filtered or re-ordered by mood. We don’t hold per-product evidence for a specific use, so we don’t pretend to rank for one. Products whose own label says they are for something else are left out.
Background on sam-e from the NIH Office of Dietary Supplements .

NOW Foods Supplements, SAMe (S-Adenosyl-L-Methionine)200 mg…
Cost per serving
$0.33
60 servings · ~60-day supply

SAM e Supplement 400mg Capsules
Cost per serving
$0.33
90 servings · ~90-day supply

Nature's Trove SAM-e 400mg 90 Enteric Coated Caplets. Vegan
Cost per serving
$0.52
90 servings · ~90-day supply

Nature's Trove SAM-e 400mg 60 Enteric Coated Caplets. Vegan
Cost per serving
$0.59
60 servings · ~60-day supply

Nutricost SAM-e (S-Adenosyl-L-Methionine) 400mg Per Serving
Cost per serving
$0.60
60 servings · ~60-day supply

Nature Made SAM-e 200mg Complete
Cost per serving
$0.66
60 servings · ~60-day supply

NOW Foods Supplements, SAMe (S-Adenosyl-L-Methionine) 400 mg…
Cost per serving
$0.67
60 servings · ~60-day supply

SAM-e 200mg - SuperSmart | 80% Active Isomer S
Cost per serving
$1.03
60 servings · ~60-day supply

Nature Made SAM-e Complete 400 mg for Mood Support, 36 Tablets
Cost per serving
$1.30
36 servings · ~36-day supply
See the full ranking, benchmarks and lab-tested brands on best sam-e by cost per dose.
Some trials support SAM-e for depressive symptoms, but it can trigger mania in people with bipolar disorder and interacts with antidepressants (serotonin syndrome risk). Promising but not a self-prescribe supplement — discuss with a clinician first. This page ranks the products people take by real cost per dose; it does not claim a supplement treats or cures anything. Not medical advice — talk to a clinician about mood.
As of September 2026, the best value we track is NOW Foods Supplements, SAMe (S-Adenosyl-L-Methionine)200 mg, Nervous System Support*, 60 Veg Capsules. The full ranking by cost per dose is above; Price ÷ servings ÷ dose — the number retailers rarely divide out.
Commonly 400–1,600 mg/day, under guidance. This is a general reference, not a prescription — confirm the right amount for you with a clinician. Not medical advice.