The Claim
Tongkat Ali supplementation for four weeks has no significant effect on depression, vigor, or fatigue levels in moderately stressed adults.
What the research says
Challenges is higher
Challenge is ahead, but a single strong supporting study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking Tongkat Ali for four weeks does not change levels of depression, energy, or fatigue in adults with moderate stress.
See the scientific wording
Tongkat Ali supplementation does not significantly improve depression, vigor, or fatigue in moderately stressed adults over four weeks, indicating that its mood effects are selective and do not broadly enhance all aspects of psychological well-being.
Tongkat Ali increases free testosterone by freeing it from binding proteins and boosts production of its precursors, while also lowering cortisol levels. These hormonal changes improve certain mood states like tension and anger, but do not change feelings of sadness, low energy, or tiredness because the brain regions and chemical systems controlling those states are not affected by this hormone shift.
What the research says
1 studyThe study found that taking Tongkat Ali for four weeks made people feel less tense, angry, or confused—but didn’t make them less sad, more energetic, or less tired. So yes, it only helps with some moods, not all.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.