Taking ashwagandha supplements (600mg daily for 8 weeks) won't change your blood test results - at least not in a meaningful way - if you're a healthy young man doing HIIT workouts.

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Pro

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Against

Evidence from Studies

Supporting (1)

61

Community contributions welcome

61

Effects of an 8-week high intensity interval training (HIIT) and ashwagandha supplementation on aerobic capacity, muscle oxygenation and haematological parameters in healthy men

Randomized Controlled Trial

Human

2025 Jul

The study gave men either ashwagandha (600mg daily) or a placebo while they did HIIT training for 8 weeks. It then checked their blood parameters and found no meaningful difference between the two groups - meaning ashwagandha didn't change their blood counts.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Effects of an 8-week high intensity interval training (HIIT) and ashwagandha supplementation on aerobic capacity, muscle oxygenation and haematological parameters in healthy men

Score: 61

DOI: 10.5114/biolsport.2025.147453

Similar Assertions

Taking ashwagandha supplements while doing high-intensity interval training doesn't help your fitness any more than just doing the training by itself. That's what this study found when it tested healthy young men doing 8 weeks of workouts.

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Taking a specific ashwagandha supplement called KSM-66 at 300-600mg every day for about 2 months can change how strong you are, how long you can exercise, and your stress hormone levels.

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