Other seafood sources for high iron and B12 include oysters, trout, salmon and haddock. For people over 50 who must limit saturated fat and cholesterol, seafood sources make superior choices to meats for building up your blood.
More specifically, sedentary men ages 19 to 30 need 2,400 to 2,600 calories; 31- to 50-year-old men require 2,200 to 2,400 calories; and sedentary men over the age of 50 need 2,000 to 2,200 calories each day to maintain a healthy body weight.
Quick Answer. An average person burns 1,600 to 2,500 calories in a day. According to Everyday Health, men burn between 1,900 and 2,500 calories per day, while women burn between 1,600 and 2,000 calories per day. Continue Reading.