The result? Bones weaken, muscles lose tone, and the immune system takes a hit. The good news: vitamin D is found in oily fish like salmon and sardines, eggs, and fortified products. A blood test can determine if supplementation is necessary.

Vitamin B12: the brain's fuel
Vitamin B12 is like the silent engine of our nervous system. It supports memory, red blood cell production, and the health of neurons. The problem? With age, the stomach produces less gastric acid, which makes it harder to absorb.
The signs of a deficiency—persistent fatigue, tingling sensations, minor memory lapses—often appear so gradually that they are attributed to normal aging. However, this is not inevitable. Meat, fish, eggs, cheese: the sources are numerous. Vegetarians and vegans would be wise to pay particular attention to them.
Vitamin C: the ally for immunity and radiance
We know it well, but we sometimes forget it in our daily lives. Vitamin C is a powerful antioxidant that protects our cells, stimulates natural defenses and participates in the production of collagen — essential for skin, joints and blood vessels.