I have been mainly BFing DD (9 weeks old) and for the past week have started a diet. Nothing too dramatic, just cutting out the many cakes and biscuits that I have been scoffing on a daily basis. But I have noticed that my expressed breast milk is much more watery and the 'fat layer' is much smaller. Will this be harmful to my baby? I have had to give her half a carton of formula each evening since I have started the diet, as she still seems hungry even after BFing for a while.