Although you can become deficient in vitamin B12 at any age, it's more common in older people due to reduced production of stomach acid. (cathe.com)
This same enzyme also protects the lining of our stomach from stomach acids. (paleodietfoodlist.net)
Trust us on this one — we know that familiar sinking feeling that happens deep in the pit of your stomach when someone mentions the words «team sport». (mmusportblog.com)