You should eat and drink normally before giving blood. Do not donate on an empty stomach. Also, remember that there is no danger of contracting any diseases, including AIDS, from donating blood. After a donation, your plasma volume and platelets are quickly replenished. Production of red cells is stepped up until normal levels are restored within a few weeks.
Blood is essential to life.
People who care about others are the only source for blood. It cannot be manufactured. It costs nothing to give, yet money cannot take its place. Donated blood is usable for only 42 days. Every two minutes , someone in our area needs blood for emergency surgeries and for medical treatment of diseases.