If you were told that your baby has milk sensitivity, milk intolerance or milk soy protein intolerance (MSPI), you will need to make some changes to your diet to continue breastfeeding. Milk and soy proteins must be eliminated from your diet. Be aware that it may take up to two weeks for the proteins already in your system to be eliminated.
Because milk and soy are considered top food allergens, if a product contains either milk or soy, it will be clearly labeled on the ingredient list. Before you buy any food product, always read the entire food label to make sure it does not contain an ingredient that you wish to avoid.
Highly refined soy oil and soy lecithin are considered safe, as the processing has separated and eliminated the protein component. The food label will state "contains soy," even if the soy present is soy oil or soy lecithin. Be sure to check the ingredient list closely to determine the source of the soy.
Food label terms that indicate milk is present:
Food label terms that indicate soy is present:
| Food Group | Recommended Foods |
| Milk and Milk Products | Alternatives made with almond, rice*, coconut or pea protein ("milks," yogurt, frozen desserts) |
| Meat and Other Protein Foods | All fresh or frozen meats, Fresh frozen or canned fish or shell fish, eggs, dried beans and peas (not soybeans), nuts and seeds, processed meats and luncheon meats without milk or soy ingredients. |
| Grains | Breads, other baked goods, cereals, crackers, noodles/pasta, pancakes, pretzels, rice*, rolls tortillas, waffles and other grain foods made without milk or soy ingredients. |
| Vegetables | All fresh, frozen or canned vegetables prepared without milk or soy ingredients,100% vegetable juices, corn* |
| Fruits | All fresh, frozen or canned fruits - prepared without milk or soy ingredients,100% fruit juice |
| Fats and Oils | Margarine made without milk or soy ingredients, Vegetable oil (including highly refined soy oil, which is processed and considered safe) Vegetable oil spray made without milk or soy ingredients Salad dressings and mayonnaise made without milk or soy ingredients |
| Other | Salt and Pepper, herbs and spices, mustard, ketchup and relish, soups and casseroles made without milk or soy ingredients, flavoring extracts, gelatin, honey, jam, jelly marmalade and preserves, sugar, maple syrup |