Which of the following foods will have the greatest impact on the water balance of the person consuming it?
1. A pickle
2. A banana
3. A milkshake
4. A spinach salad
ANS: 1
Sodium ions are the major contributors to maintaining water balance through their effect on se-rum osmolality, nerve impulse transmission, regulation of acid-base balance, and participation in cellular chemical reactions. Pickles are a high-sodium food. The remaining options are good sources of potassium, calcium, and magnesium.
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