Red meat is a rich source of vitamin B12, which is vital to proper functioning of nearly every system in your body. B12 deficiency can play a role in everything from aging, neurological disorders, and mental illness, to cancer, cardiovascular disease, and infertility. Red meat also contains significant levels of other B vitamins, including B1, B2, B5, B4, B3 and vitamin B6. It’s crucial to get these vitamins from whole foods sources, rather than relying on government fortification of processed foods, and red meat is one of the easiest ways to ensure adequate intake.
For people who don’t eat a lot of oily fish or receive a lot of direct sun exposure, red meat can contribute significantly to their overall vitamin D intake. Red meat also contains a vitamin D metabolite called 25-hydroxycholecalciferol, which is assimilated much more quickly and easily than other dietary forms of vitamin D. In populations with low sun exposure, meat has been shown to be protective against rickets, a degenerative bone disease caused by severe vitamin D deficiency.
Red meat contains primarily heme iron, a form that is absorbed and utilized much more efficiently than the non-heme iron found in plant foods. Furthermore, even small amounts of meat can aid in the absorption of non-heme iron from plants. For most of the population – especially those with iron-deficiency anemia – the iron from red meat is very beneficial. This is particularly important for women who are pregnant or looking to become pregnant, as iron is crucial for the growth and development of the fetal brain.
Red meat is an especially important source of zinc, because the other rich sources — organ meats and shellfish — are much less commonly consumed in our country. As with vitamin D and iron, the zinc present in red meat is highly bio available, and even a small amount of red meat in the diet can increase zinc utilization from all sources. Zinc is an essential mineral that is an imperative part of many physiological functions, including structure in certain proteins and enzymes, and regulation of gene expression, and those eating meat-free diets are at greater risk of zinc deficiency.
Finally, to round out this impressive nutrient profile, red meat contains significant levels of other vital minerals such as magnesium, copper, cobalt, phosphorus, chromium, nickel, and selenium.
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