Quick answer: Panax ginseng shows small, inconsistent effects on memory and mental fatigue at 200 to 400 mg of extract. BCAAs are mainly muscle nutrients; studies on mental fatigue are limited. Ginseng needs care with blood thinners and diabetes medicine.
Panax ginseng
Some small trials found faster reaction times or less mental fatigue on demanding tasks; reviews call the evidence inconsistent.
BCAAs
Leucine, isoleucine and valine are studied for muscle recovery. A theory links them to less "central fatigue" during exercise, but results for thinking are weak.
Cautions
- Ginseng may lower blood sugar and interact with warfarin.
- Ginseng can cause insomnia in some people.
- BCAAs are not advised for people with ALS or rare amino acid disorders.
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General information, not medical advice. MemoFix is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease.