PlainPill

5-HTP vs SAM-E for mood

Short answer: For mood, more users report improvement with SAM-E — 92% of 114 reports, versus 84% of 214 for 5-HTP.

5-HTP has 15 meta-analyses and 73 randomized trials on PubMed; SAM-E has 3 and 1.

Based on 767 reports about 5-HTP and 284 about SAM-E. Not medical advice.

5-HTP
Supplement
SAM-E
Supplement
Users say it helped40%helped345 reports · high confidence63%helped131 reports · high confidence
Verdict
Mixed
Mostly positive
ResearchAResearch: StrongBResearch: Moderate
Meta-analyses / RCTs15 / 733 / 1
Mainly used for
Mood
% reporting improvement
84% (214)92% (114)
Sleep
% reporting improvement
85% (102)33% (3)
Anxiety
% reporting improvement
72% (71)67% (21)
Energy
% reporting improvement
76% (17)87% (23)
Focus
% reporting improvement
73% (11)100% (13)
Common side effectsvivid dreams, heart valve, serotonin syndrome, drowsinessinsomnia, jitteriness, stomach issues, anxiety
Typical dose reported100 mg / with coffee200-400 mg / daily
5-HTP
Latest review conclusion

There are few, large, high-quality trials comparing combination pharmacotherapy with monotherapy for fibromyalgia, consequently limiting evidence to support or refute the use of combination pharmacotherapy for fibromyalgia.

Cochrane Database Syst Rev, 2018 ↗
What a user said
“I just one day randomly decided to take 5-HTP an hour after finishing my workout, and I felt WIRED 15 minutes after taking it, and that lasted for 5–6 hours.”
Full 5-HTP profile →
SAM-E
Latest review conclusion

Our results showed that robotic surgery contributed positively to some perioperative outcomes but longer operative times remained a shortcoming. Better quality evidence is needed to guide surgical decision making regarding the precise clinical targets of this innovation in the next generation of its use.

Surg Endosc, 2016 ↗
What a user said
“I also take SAM-e in the morning (200mg or 400mg per day depending on how I'm feeling) for my general depression/anxiety.”
Full SAM-E profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate