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.
Then, until she reaches age 50, she should get 2,000 calories a day and taper down to 1,800 calories a day from age 51 on. Sedentary women ages 19 to 25 need 2,000 calories a day; sedentary women ages 26 to 50 need 1,800 calories a day and sedentary women ages 51 and over need 1,600 calories a day.omen need fewer daily calories per day as they age. The U.S. Department of Agriculture's National Health and Nutrition Examination Survey found that the average American woman over age 20 takes in over 1,700 calories per day.