Question

Give two examples of food based solutions to overcome dehydration.

Hint:

Adding a small amount of sugar or starch to a salted rehydration drink is highly beneficial. Glucose actively stimulates the sodium-glucose cotransporters (SGLT-1) in the intestinal wall, pulling sodium and water into the body much faster than drinking plain water alone.

Answer 1

Step 1: Understanding Dehydration and Rehydration Physiology:
Dehydration occurs when the body experiences a net loss of water and essential electrolytes (especially sodium, $Na^+$, and potassium, $K^+$) due to vomiting, diarrhea, excessive sweating, or inadequate fluid intake. Rehydration requires replenishing both water and these vital electrolytes to restore osmotic balance.

Step 2: Identifying Two Food-Based Solutions:
Two highly effective, traditional food-based solutions to combat dehydration are:

• Tender Coconut Water: Tender coconut water is an excellent, naturally sterile rehydration fluid. It is highly isotonic with human blood plasma and rich in essential minerals, particularly potassium ($K^+$), magnesium, and sodium. It also contains natural sugars that provide quick energy and help the body absorb fluids efficiently.
• Salted Buttermilk (Chaas Lassi): A traditional fermented dairy beverage prepared by diluting curd with water.
  • Diluting curd with water provides an abundant source of water, calcium, and potassium.
  • Adding a pinch of common salt (sodium chloride, $NaCl$) replenishes lost sodium ions, which are critical for water retention and fluid balance.
  • It also contains lactic acid bacteria (probiotics) that help soothe the gut lining during gastrointestinal illness.

Other notable food-based solutions include lemon water with salt and sugar, rice kanji (rice starch water with salt), and barley water.