The adequate intake (AI) for choline is 550 mg per day for men and 425 mg per day for women. The AI for choline increases during pregnancy (450 mg per day) and lactation (550 mg per day).

The tolerable upper intake level (UL) for choline from food and supplements is 3,500 mg per day for men and women. The UL is 1,000 mg per day for children 1–8 years old, 2,000 mg per day for children 9–13, and 3,000 mg per day for children 14–18 years old.^[1]