what about ashwagandha in tea, specifically Yogi brand tea containing 750mg?

The general ashwagandha guidance applies whether it’s taken as a supplement or in tea, but there’s no specific information here about Yogi tea or what its stated 750 mg represents. The key consideration is the actual ashwagandha dose: guidance discussed 300–900 mg, with 300 mg suggested as a starting point, and advised taking cortisol-lowering doses later in the day rather than in the morning. 1

• Cortisol and possible effects: Ashwagandha was described as lowering cortisol; effects associated with that reduction may include less anxiety, lower heart rate, and modestly improved memory. 2
• Testosterone: It may modestly increase testosterone, probably indirectly because lowering cortisol can shift the balance toward testosterone. 3
• Timing: Take it later in the day or evening, not early in the day at doses intended to reduce cortisol. 4
• Use duration: Avoid high-dose, continuous use beyond about two weeks without a break; the discussion also recommends cycling off after a period of use. 5

For the Yogi product, check the package to clarify whether 750 mg refers to ashwagandha itself or to a blend/serving amount; the guidance does not establish how much active ashwagandha is in that tea.