Is it better to take ashwagandha in the morning or in the evening?
Whether it is better to take ashwagandha in the morning or in the evening has never been directly studied. Choose the moment that you can stick with, because the proven effects occur regardless of timing.
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No study in the available literature has directly compared morning versus evening intake of ashwagandha. The question of which timing works better has simply not been investigated. There is therefore no scientific basis for a preference.
What the studies do show is that ashwagandha has demonstrable effects on stress hormones, sleep and hormone levels, regardless of timing. At a dose of 240 mg per day, morning cortisol (the stress hormone that peaks in the morning) decreased significantly after 60 days. At 600 mg per day, sleep quality and recovery feeling improved in female athletes after 28 days. And a standardised extract produced higher DHEA-S and testosterone levels in older men after 8 weeks. In all of these studies, the timing of intake was not an investigated variable.
From a practical standpoint: because none of the studies included timing as a factor, it is not known whether you benefit more from taking it in the morning or in the evening. What you can do is choose the moment at which you are best able to maintain consistent supplement use. If you sleep poorly or want to improve your recovery, some people opt for evening intake because of its calming effect, but this is not supported by direct comparative studies.
Three RCTs (PMID 31517876, 30854916, 39954269) support the effects of ashwagandha, but no study compared morning versus evening intake as a variable. The question of the optimal timing cannot be answered on the basis of these sources.