Question: what not to eat when breastfeeding a baby?
Answer: Fish. Fish are a great source of protein and omega-3 fatty acids and are okay to eat in moderation during breastfeeding. ... 
Coffee and Tea. ... 
Alcohol. ... 
Chocolate. ... 
Parsley, Peppermint and Sage. ... 
Garlic. ... 
“Gassy” Foods. ... 
Medicines to Avoid While Breastfeeding.