Observational studies find an association between caffeine intake and changing hormonal levels. Meaning, there's a link, but there's no proof that caffeine causes changes in hormones.

Can I drink coffee if I have hormonal imbalance?

Caffeine can disrupt your hormonal cascade.

Caffeine itself can cause your body to produce extra cortisol. And while cortisol isn't always bad (the steroid hormone helps maintain healthy blood pressure levels and regulates blood sugar), high cortisol levels can affect your body's ability to regulate inflammation.

What hormones does caffeine effect?

Caffeine in dietary doses increases both adrenocorticotropin (ACTH) and cortisol secretion in humans (15). Caffeine's effect on glucocorticoid regulation therefore has the potential to alter circadian rhythms and to interact with stress reactions.