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Health effect

Mental Energy

A guide to feeling mentally alert, what supplement studies measure, and when persistent tiredness needs a different approach.

Rated nutrients

122 ratings, sorted by the largest rated effect. Bars show effect size, the letter is the evidence grade and links to the record.

CaffeineStrongA
SalidrosideModerateB
SchisandraModerateB
Yerba mateModerateB
Tongkat AliModerateB
Holy BasilModerateB
CreatineModerateB
PQQModerateB
TheacrineModerateB
MatchaModerateB
GinsengModerateB
GuaranaModerateB
L-TyrosineModerateB
Goji BerryModerateB
GingerSmallC
L-DopaSmallC
ReishiSmallC
RiboseSmallC
DMAESmallC
DHEASmallC
MacaSmallC
CloveSmallC
ChagaSmallC
TrehaloseNo effectF
RauwolscineNo effectF
HordenineNo effectF
7-Keto DHEANo effectF
Kava RootNo effectF
Vitamin B5No effectF
GABANo effectF
L-SerineNo effectF
AsparagineNo effectF
AdenosineNo effectF
OctopamineNo effectF
ZMANo effectF
PinealonNo effectF