What are the functions of these vitamins?
Vitamins B12 and B9 play a role in brain function. However, vitamin B12 affects both peripheral nerves and blood production. According to the authors of this study, a deficiency in these two vitamins may indirectly increase neuronal death, an important phenomenon involved in Alzheimer’s disease. This hypothesis is based on the following results: in a population over 75 years old without dementia, 370 people were randomly selected and followed for 3 years. During this period, 78 patients developed Alzheimer’s disease and more than half had low levels of vitamin B12 or B9 in their blood.
How to avoid disadvantages?
Remember that during a varied, balanced and adequate diet, the daily needs for vitamins (A, B, C, D, E and K) are usually met. However, for some vitamins, the risk of deficiency is extremely important in the elderly: vitamin D and some group B vitamins. We know how important it is to first qualify well, now we need to count with B12 and folate, so we strongly recommend that you make the effort for your diet quality: Vitamin B12 is mainly found in green vegetables, dried beans, peas, whole grains, liver and egg yolk; Folate is provided by animal products, mainly meat, but also fish, dairy products and eggs.
Currently, the blood dose of vitamins B12 and B6 is part of the assessment recommended by the ANAES (National Agency for Accreditation and Health Assessment) for the diagnosis of Alzheimer’s disease. It is possible that soon, in confirming these Swedish results, it would be interesting to detect this deficit even in the absence of a violation of higher functions. The ultimate goal, of course, is to prevent this serious pathology.