OTHER MINERALS
- POTASSIUM: ABSORBED PASSIVELY ALONG ENTIRE SMALL INTESTINE. IF LUMINAL LEVELS BECOME LOWER THAN SERUM (4 - 5 MEQ/L), NET SECRETION WILL OCCUR IN ILEUM AND COLON.
- MAGNESIUM: AVERAGE DAILY DIET CONTAINS 10MILLIMOLES OF WHICH LESS THAN HALF IS ABSORBED. PASSIVELY ABSORBED ALONG THE ENTIRE SMALL INTESTINE.
- PHOSPHATE: ABSORPTION ALL ALONG SMALL INTESTINE BY PASSIVE AND ACTIVE TRANSPORT.