I'm looking for. protein powder or bar i can use while nursing, breakfast is difficult for me so i need something quick easy and healthy. are they safe? is there anything i should look out for?

Full balanced diet: You can easily find protein bars in any large food market but you should really have a complete balanced diet with not only protein but also carbs, fats, vitamins, and minerals. You live in California and that should be easy to obtain without supplements all year round. You could speak to a nutritionist for more detailed guidance if need be.