While an infant’s renal secreting capacity is initially less than adults, renal function rapidly reaches the normal adult level in early childhood, so little concern exists for consumption of high levels of potassium from foods. Because the renal secreting ability of normal infants is not fully developed, potassium intake should be limited to that contained in formula and complementary foods.

Pregnancy. Other than occasional gastrointestinal discomfort as noted above from the use of certain forms of supplemental potassium, adverse effects from high intakes of potassium have not been noted in apparently healthy individuals, which would include pregnant women who are not identified as having hypertension or preeclampsia. Therefore, a UL for potassium is not set for healthy women during normal pregnancy.

Lactation. As with other adults, there is little reason to restrict the potassium intake of healthy lactating women due solely to lac-