Rhodiola vs Magnesium
for stress
Stronger evidence: tie
Stronger effect: Magnesium
Safety: Rhodiola has the more serious interaction profile (uncertain vs minor).
For stress, the two are evidence-matched; the difference is in effect and safety.
Magnesium
grade C low certainty
may modestly reduce subjective anxiety/stress, esp. in deficiency
200–400 mg, adults
sources: PMID:00000032 · PMID:20000101