Monosodium glutamate is a food additive that might be lurking in your backpacking food, leading to respiratory and digestive negative reactions. Read the labels carefully before you pack your trail menus.
Drinking Water - can usually clear up/change the color of Urine. WHAT COLOR IS YOUR PEE? Urine Color Chart: "The color of your urine says something about your HEALTH." Infographic from Cleveland Clinic HealthHub