Guide

Yes, influenza can upset electrolytes when fever, sweating, vomiting, or diarrhea trigger dehydration or poor intake.

Yes, a flu shot may cause a short-lived rise in blood sugar, but vaccination reduces the larger risk of infection-driven glucose swings.

Yes, vitamin D tablets can upset the stomach in some people, especially with higher doses or on an empty belly.

Yes, vitamin D tablets can trigger loose stools in some people, usually due to dose, additives, or pairings—not the vitamin itself.

Yes, influenza can make food taste weird because smell and taste signals drop during the illness.

No, the flu vaccine doesn’t raise blood sugar long term; brief, mild bumps can happen within a day or two.

No, seasonal influenza isn’t caught from eating cooked foods; flu spreads by breath and touch, and standard cooking or pasteurization neutralizes the virus.

Yes, excess vitamin D can trigger anxiety by raising calcium levels that affect brain signaling.

Yes, certain foods and drinks can raise or steady heart rate through digestion, stimulants, fluid balance, and blood-sugar swings.

Yes, vitamin D supplements can cause stomach upset in some people, especially with high doses or on an empty stomach.