Table 1.

Breastmilk feeding intensity categories

Category	Definition	Inclusion criteria
Exclusive	100% milk feeds as breastmilk with no additional fluids or foods except vitamins/minerals, medicines and minimal water‐based liquids	• 100% milk feeds as breastmilk AND • no formula top‐ups, juice or cow's milk AND • no regular water/herbal tea (< one time per day) AND • no solids prior to 1–5 months or >14 days prior to 6 months
Predominant	≥75% milk feeds as breastmilk	• ≥75% milk feeds as breastmilk; may include formula top‐ups and any other fluids/foods OR • 100% milk feeds as breastmilk + formula top‐ups; may include any other non‐formula fluids/foods OR • 100% milk feeds as breastmilk + solids (if introduced prior to 1–5 months or >14 days prior to 6 months)
Partial	<75% milk feeds as breastmilk	• <75% milk feeds as breastmilk; may include formula top‐ups and any other fluids/foods OR • no breastmilk feeds < 7 days
None	No breastmilk feeds	• no breastmilk feeds ≥7 days