According to the National Institutes of Health (NIH), the recommended daily intake of vitamin B12 is 2.6 mcg for pregnant women and 2.8 mcg for breastfeeding women values higher than those recommended for the general population (1.2 mcg to 2.4 mcg, for ages 4 through 50 and older), as shown in the table below, prepared by Adeca Agronegcios a consulting group affiliated with ESALQ/USP and linked to Cepea based on recommendations from the USDA (United States Department of Agriculture): Beef: a natural and highly bioavailable source of vitamin B12 According to data from the Food and Nutrition Board in the United States, 100 grams of beef provide, on average, 2.5 mcg to 2.6 mcg of vitamin B12 an amount that can meet the daily recommendation in some cases, particularly for adults although pregnant and breastfeeding women have slightly higher demands
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