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.
1 Recommended daily calorie intakes in the US are 2,700 for men and 2,200 for women. 2  Eating a big breakfast could help with weight reduction and maintenance. 3  When food is eaten may matter as much as what and how many calories are eaten. Recommended daily calorie intakes in the US are 2,700 for men and 2,200 for women. 2  Eating a big breakfast could help with weight reduction and maintenance. 3  When food is eaten may matter as much as what and how many calories are eaten.