Why eat before a blood donation?

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In other words: Why is it giving blood can make people have symptoms?

2006-11-28 01:34:02 · 3 answers · asked by jojorockman 2 in Health ➔ Diseases & Conditions ➔ Other - Diseases

To elevate your blood sugar levels hopfully preventing the "symptoms", or passing out.

2006-11-28 01:38:44 · answer #1 · answered by Jeri C 3 · 0⤊ 0⤋

by eating before a blood donation increases heart rate and makes it easier for blood flow.

2006-11-28 09:41:33 · answer #2 · answered by gasmanfart 3 · 0⤊ 0⤋

Giving blood, even a pint, can make some people feel very wobbly.

2006-11-28 09:36:28 · answer #3 · answered by WC 7 · 0⤊ 0⤋