Brief

Vitamin D may play a role in boosting energy levels, with studies indicating that supplementation can improve fatigue in deficient individuals. Deficiency symptoms can include fatigue and muscle weakness, and research suggests vitamin D aids muscle efficiency and mitochondrial function. While sunlight and certain foods provide vitamin D, many adults do not get enough, making supplements a potential option, though medical consultation is advised to confirm deficiency and rule out other causes of low energy. AI

Vitamin B12 is a crucial nutrient for maintaining healthy blood and nerve cells, and its deficiency can lead to fatigue, anemia, and neurological issues. While found primarily in animal products, vegans and vegetarians may need fortified foods or supplements. Medical consultation is advised before starting supplements, as absorption can be affected by certain medical conditions and medications. AI