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Fasting Requirements

Some laboratory tests, such as glucose and cholesterol, require an overnight fast of 8-12 hours.

For the duration of the fast, you MAY NOT:

  • Eat any foods
  • Eat candies, mints, or chew gum
  • Smoke cigarettes
  • Consume any kind of liquid other than water (including coffee, tea, alcohol, and soft drinks)

You MAY:

  • brush your teeth
  • take your medication

You SHOULD:

  • drink water in moderation (2-3 glasses) during your fast. 

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