Exclusive breastfeeding (EBF)

Breast milk, including expressed breast milk or from a wet nurse

Drops, syrups (vitamins, minerals, medicines)

Anything else

Predominant breastfeeding (PBF)

Breast milk as the predominant source of nourishment

Drops, syrups plus liquids (water, water-based drinks, fruit juice, ritual fluids)

Anything else (in particular, non-human milk, food-based fluids)

Breastfeeding with complementary foods (CBF)

Breast milk and solid or semisolid foods or non-human milk

Any food or liquid including non-human milk

Non-breastfeeding (NBF)

No breast milk

Any food or liquid including non-human milk

Breast milk, including expressed breast milk or from a wet nurse