vitamins and minerals for energy production
1 The family of B vitamins -- B2, B3, B6, and B12 -- aid metabolism, energy production, and healthy circulatory and nervous systems. 2  Good sources include meat, chicken, fish, nuts, eggs, milk, cheese, beans, and soybeans.
Iron. Iron is an essential mineral needed for the manufacture of haemoglobin, the part of red blood cells that carries oxygen and is needed for energy production. When iron levels are low, red blood cells can't carry enough oxygen to the body's tissues, causing fatigue. When haemoglobin levels are low, anaemia occurs.