SAM-e

Essential methyl donor molecule that supports mood regulation, liver function, and joint health through methylation processes

Scientific nameS-Adenosyl-L-methionine FormulaC15H22N6O5S Molecular weight398.44 g/mol CAS29908-03-0

70 absorption score

7 safety / 10

45 USD per month

5 documented interactions

Check it against something

Evidence level A

SAM-e with:

94 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Significant mood enhancement and depression relief

Effectively reduces depression symptoms and improves mood

Increases serotonin, dopamine, and norepinephrine production Evidence A-grade 2-4 weeks

Enhanced liver function and detoxification

Supports liver health and glutathione production

Provides methyl groups for liver methylation processes Evidence A-grade 4-8 weeks

Joint health and arthritis relief

Reduces joint pain and inflammation

Supports cartilage formation and reduces inflammatory markers Evidence B-grade 6-12 weeks

Cognitive function improvement

Enhances memory, focus, and mental clarity

Supports neurotransmitter synthesis and brain methylation Evidence B-grade 4-8 weeks

Cardiovascular health support

Helps maintain healthy homocysteine levels

Provides methyl groups for homocysteine metabolism Evidence B-grade 6-12 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Turmeric Anti-inflammatory & antioxidant 300-1000mg A 3% Vitamin B12 (Cyanocobalamin) Energy & nerve support 250-1000 mcg A 70% Fish Oil (EPA/DHA) Heart & brain health 1-2g EPA/DHA A 85% L-Theanine Calm focus & stress relief 100-400mg B 90% Glutathione Master antioxidant & detox support 250-750mg B 20% Astaxanthin Superior antioxidant & skin protection 4-12mg B 20%

Every pair we checked

12 combinations scored by the engine

SAM-e + L-Methionine May interfere with SAM-e effectiveness Needs attention 61

SAM-e + Caffeine No documented interaction either way No known interaction 70

SAM-e + Creatine Monohydrate No documented interaction either way No known interaction 70

SAM-e + Calcium Carbonate No documented interaction either way No known interaction 70

SAM-e + Whey Protein No documented interaction either way No known interaction 70

SAM-e + Lactase No documented interaction either way No known interaction 70

SAM-e + Bovine Collagen No documented interaction either way No known interaction 70

SAM-e + DHA No documented interaction either way No known interaction 70

SAM-e + Turmeric No documented interaction either way No known interaction 70

SAM-e + Vitamin D3 Enhanced methylation and neurotransmitter production Works better together 94

SAM-e + Vitamin C (Ascorbic Acid) Enhanced methylation and neurotransmitter production Works better together 94

SAM-e + Folate (5-MTHF) Enhanced methylation and neurotransmitter production Works better together 99

Dosage

Morning on empty stomach

Daily400-800mg

Depression mood400-800mg daily

Liver support400-800mg daily

Joint health400-1200mg daily

Cognitive enhancement400-800mg daily

When to expect it

First Effects1-2 weeks for mood and energy improvements

Peak Benefits4-8 weeks for sustained mood and liver benefits

Deficiency DevelopmentWeeks to months with inadequate methylation support

Toxicity OnsetRare, mainly mania risk in bipolar patients

How to measure it

$100-200

MarkerHomocysteine levels, SAM-e/SAH ratio

OptimalHomocysteine <10 μmol/L, high SAM-e/SAH ratio

Deficient belowLow SAM-e levels, elevated homocysteine

FrequencyEvery 3-6 months for monitoring

What people actually reported to the FDA

CAERS, 66 reports naming it as the suspect

Most reported effects

Pain 6

Blood pressure increased 6

Heart rate increased 6

Headache 6

Hypersensitivity 6

Named as the suspect 66 reports of 81 that mention it at all

Serious outcome 82% hospitalisation, emergency room or worse

Other Serious or Important Medical Event45

Hospitalization21

Visited a Health Care Provider15

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption High 70 of 100 · absorbs well relative to other forms

Delivered daily 420 mg

Cost per 100 mg delivered $0.36 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

B Vitamins

Enhanced methylation and neurotransmitter production

B-vitamins support methylation cycle function · level A

Folate Methylfolate

Improved methylation capacity and mood benefits

Works together in methylation cycle · level A

Vitamin B12

Enhanced homocysteine metabolism

Both support methylation and homocysteine conversion · level A

What not to take with SAM-e

2 documented

Alcohol

Depletes SAM-e and impairs methylation

Alcohol consumption reduces SAM-e levels · major significance

Excess Methionine

May interfere with SAM-e effectiveness

Competition in methylation pathways · minor significance

Medication interactions

Discuss these with a pharmacist before combining

antidepressants Moderate

May enhance serotonergic effects

What to do: Monitor for serotonin syndrome

levodopa Moderate

May reduce levodopa effectiveness

What to do: Space dosing apart

mood-stabilizers Major

May trigger mania in bipolar patients

What to do: Avoid in bipolar disorder

Available forms

bioavailability compared

S-Adenosyl-L-methionine (enteric-coated) 70

S-Adenosyl-L-methionine (enteric-coated): Excellent for depression, Liver support, Well-researched, Fast-acting

Food sources

before you supplement

Not available in food Must be synthesized in body · N/A

Supplements only 400-800mg typical dose · 70

Methionine-rich foods support production Meat, fish, eggs, dairy · Variable

Folate sources support SAM-e synthesis Leafy greens, legumes · Variable

Too little

deficiency signs

Depression and mood disorders
Impaired liver function
Elevated homocysteine levels
Joint pain and stiffness
Cognitive decline and memory issues
Fatigue and low energy
Poor methylation capacity

Too much

toxicity signs

Mania or hypomania in bipolar patients
Severe nausea and vomiting
Anxiety and restlessness
Insomnia and sleep disturbances
Headaches and dizziness

Who benefits most

depression-mood-disorders

Highly effective for treating depression and mood disorders

400-800mg daily

liver-detoxification

Essential for liver methylation and detoxification processes

400-800mg daily

joint-health-arthritis

Reduces joint pain and supports cartilage health

400-1200mg daily

cognitive-enhancement

Improves memory, focus, and mental clarity

400-800mg daily

methylation-support

Essential for proper methylation in aging individuals

400-800mg daily

Where to buy it

compare forms first

Look for SAM-e at 400-800mg per serving. The form that matters here is S-Adenosyl-L-methionine (enteric-coated).

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What else affects it

Beyond other supplements

Alcohol

Depletes SAM-e and impairs methylation

Alcohol consumption reduces SAM-e levels

How it works

Donates methyl groups for neurotransmitter synthesis
Increases serotonin, dopamine, and norepinephrine production
Supports liver methylation and glutathione synthesis
Facilitates DNA methylation and gene expression
Reduces homocysteine through methylation pathway
Supports cartilage formation and joint health

Key findings

what the evidence supports

Highly effective for depression treatment (multiple RCTs)
Significant benefits for liver health and function
Effective for osteoarthritis pain and joint health
Fast-acting compared to traditional antidepressants

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of SAM-e?

Documented effects: Significant mood enhancement and depression relief; Enhanced liver function and detoxification; Joint health and arthritis relief; Cognitive function improvement. Effectively reduces depression symptoms and improves mood

How much SAM-e should you take per day?

The common daily range is 400-800mg. By goal — depression mood: 400-800mg daily; liver support: 400-800mg daily; joint health: 400-1200mg daily; cognitive enhancement: 400-800mg daily.

When is the best time to take SAM-e?

Morning on empty stomach. First effects are typically reported within 1-2 weeks for mood and energy improvements.

What are the side effects of SAM-e?

At excessive doses: Mania or hypomania in bipolar patients, Severe nausea and vomiting, Anxiety and restlessness, Insomnia and sleep disturbances, Headaches and dizziness. Safety rating at normal doses is 7 out of 10.

What should you not take with SAM-e?

Separate it from Alcohol, Excess Methionine by two to four hours. Depletes SAM-e and impairs methylation

Does SAM-e interact with medications?

Documented interactions with antidepressants, levodopa, mood-stabilizers. Discuss these with a pharmacist before combining.

How do you know if you need SAM-e?

The marker is Homocysteine levels, SAM-e/SAH ratio, optimal range Homocysteine <10 μmol/L, high SAM-e/SAH ratio. Common deficiency signs: Depression and mood disorders, Impaired liver function, Elevated homocysteine levels, Joint pain and stiffness.

Taken for

52 Brain & Focus

Caffeine · DHA · Fish Oil (EPA/DHA)

49 Liver & Detox

Turmeric · Vitamin C (Ascorbic Acid) · D-Mannose