RBC magnesium provides a more accurate assessment of magnesium status than serum levels. Magnesium is essential for muscle and nerve function, blood sugar control, and bone health. Deficiency can lead to neuromuscular and cardiovascular issues.

Zinc is vital for immune function, wound healing, and DNA synthesis. Deficiency can impair immune response and delay wound healing, while excess can interfere with copper metabolism.

Copper is important for iron metabolism and nervous system function. Elevated copper levels can be associated with inflammation and oxidative stress, while deficiency can lead to anemia and neurological symptoms.

Glutathione is a major antioxidant that protects cells from oxidative damage and supports immune function. Low levels can indicate oxidative stress and are associated with various conditions, including liver disease and cancer.

Essential for vision, immune function, and skin health. Deficiency can lead to night blindness and increased infection risk, while excess can cause toxicity, including liver damage and teratogenic effects.

Folate is crucial for DNA synthesis and repair, and red blood cell formation. Deficiency can lead to megaloblastic anemia and increased risk of neural tube defects in pregnancy.

Important for brain development and function, and helps the body convert food into energy. Deficiency can lead to anemia, dermatitis, and neurological symptoms, while excess can cause sensory neuropathy.