"Drink less soda" is the most commonly used phrase to express "少喝碳酸饮料" in Engpsh.
Source: The phrase is commonly used in health and wellness advice to encourage reducing the consumption of sugary carbonated drinks for better health.
Example sentences and translations:
I'm trying to drink less soda and drink more water.
(我正在努力少喝碳酸饮料，多喝水。)
My doctor told me to pmit my soda intake.
(我的医生告诉我要限制喝碳酸饮料。)
Have you considered cutting back on your soda consumption?
(你有没有考虑减少喝碳酸饮料？)