**Abstract**

Bovine meat and milk play a major role in the diet of humans and they have positive impact on global food security. The aim of this review work was to investigate the impact of bovine sources of meat and milk on food security in the low, medium and high income countries. Bovine source meat and milk could have impact on the nutritional, health, work, income, educational and recreational needs of humans. However, the feeding needs of bovine are mainly met with forage materials which do not compete with human foods. The beef and dairy cattle are raised mainly under the extensive system of production in the low and medium income countries, while the intensive system of production is that which is adopted majorly in the high income developed nations. The production of healthy beef and milk products may be observed to go a long way in preventing disease occurrence in both the cattle and the human consumers. The raising of fewer numbers of more genetically productive breeds of cattle under the intensive, semi-intensive and extensive systems of production could also have positive impact on global food security, sustainability and the mitigation of green house gas (GHG) emissions.

**Keywords:** bovine protein food sources, production systems, global food security
