Multiple choice

Diabetes is caused by the deficiency of

  1. glucose

  2. insulin

  3. vitamin C

  4. vitamin A
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Diabetes mellitus involves problems with insulin - either insufficient production (Type 1) or insulin resistance (Type 2), not a deficiency of glucose or vitamins A or C. Insulin is the hormone that regulates blood glucose levels.

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