in Health A blood donor loses about 650 calories… by Chirag Chauhan April 26, 2018, 12:47 pm 72 Views A blood donor loses about 650 calories by donating one pint of blood, that one pint can save up to 3 lives. blood donor Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *