Cold liquids may slow digestion for some people, especially first thing in the morning.
Fix: Use room-temperature or warm water to support gentler digestion.
And temperature isn’t the only timing issue.
Mistake 4: Drinking on a Completely Empty Stomach (If You’re Sensitive)

Some people tolerate lemon water well on an empty stomach. Others experience burning or nausea.
Lisa, 42, noticed discomfort every morning until she changed one thing. She started drinking lemon water after a light breakfast. The irritation stopped.
Fix: If sensitive, pair lemon water with food.
Groceries
But there’s more hiding on the lemon itself.
Mistake 5: Not Washing the Lemon Thoroughly