Ashwagandha + Rhodiola Worked. The Evening Sleep Stack Didn't.
A new four-arm trial throws a curveball at the supplement-stacking crowd. In 103 healthy, active adults, a morning combo of 600 mg ashwagandha and 300 mg Rhodiola rosea was linked to lower perceived stress, better sleep quality and improved mood. The popular evening stack of magnesium L-threonate, L-theanine and apigenin added nothing, and taking both looked worse on positive affect. Here's what the study found, why it needs caution (only two weeks, small groups), and how lifters might use it.
200 mg of Rhodiola Bought Lifters 24 Extra Seconds. Then Four Weeks of Daily Dosing Added Nothing
A single 200 mg dose of Rhodiola rosea taken an hour before exercise nudged time to exhaustion from 16.8 to 17.2 minutes and raised VO2peak in a double-blind crossover trial. The twist is that four weeks of daily dosing didn't build on that effect or change any measured variable. The gain was small, about 24 seconds, and strength, reaction time and attention didn't budge. Here is what the study actually found, who might try an acute dose, and why you shouldn't count on "loading" rhodiola.