Our body naturally produces cortisol in the morning, which is unrelated to coffee intake, she said.

Most research suggests that coffee offers positive health benefits, according to Lovallo and Levine.

Recent studies have shown that caffeine contains antioxidants that may protect against chronic diseases such as dementia.

A woman drinking coffee by the window

Liliya Krueger / Getty Images

Does Coffee Cause Bloating?

Some TikTokers mentioned that coffee causes bloating, but most health experts say this likely isnt related to cortisol.

Drinking coffee with dairy milk may also cause bloating if someone has a dairy sensitivity.

In addition to drinking coffee, other factors like medications or morning workouts might influence ones digestion as well.

Should You Eat Breakfast Before Drinking Coffee Then?

Most experts agree that there isnt enough evidence to make a definitive statement about eating breakfast before drinking coffee.

His team investigated how a bad nights sleep may affect metabolism.

People differ in how they respond to caffeine, Lovallo said.

However, coffee can impact people differently.

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2020;124(10):1114-1120. doi:10.1017/S0007114520001865