Dear dr i am breastfeeding.baby is now 12 months old.i need to lose weight.will dieting affect my milk production?

Maybe/not: After a year the relative benefit of BF to other forms of feeding is minor, based on their adoption of other foods in their diet. If/when you follow a balanced diet based on the needs of your desired weight (not a crash diet), production of milk can aid your progress by drawing off 300-400 cal/day devoted to milk production. It can work well & help you drop 1-2 lb/mo without much effect on BM.