No, its is absolutely not true, unless you were doing it IV. Same goes for plasma donations.
http://www.utahblood.org/qualifications/qualifactions.htm
Age
Blood donors must be age 17 or older. Parental permission is required for minors.
Weight
You must weigh at least 110 pounds (50 kg) to donate blood.
Photo ID
When you go to donate, be sure to bring a picture ID that contains your legal name.
You must be feeling well and healthy the day of donation.
Eat a good meal and drink plenty of fluids prior to donating.
Frequency
Donating whole blood is safe every 56 days (eight weeks). Donating platelets is safe every five days, up to 24 times per year.
Please DO NOT donate blood if you:
Have cold or flu symptoms or do not feel well the day of donation.
Have taken oral antibiotics in the past five days. (Antibiotics taken for acne are okay.)
Have had hepatitis after the age of 11.
Have received a blood transfusion within the past 12 months.
Have had a tattoo, body piercing, acupuncture, an accidental needle stick or have come in
contact with someone else's blood in the past 12 months.
Have had malaria or have traveled to a malarial-risk area within the past 12 months.
Are pregnant.
Have been treated for syphilis or gonorrhea in the past 12 months.
Have ever used a needle to inject nonprescription drugs (including steroids).
Have or are at risk for HIV, the virus that causes AIDS.
Note: Due to new restrictions related to Creutzfeldt-Jakob disease (commonly known as human mad cow disease), if you have traveled to Europe since 1980, please call
801-584-5272 to determine your eligibility.