The four most abundant elements in the human body are

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Carbon, hydrogen, oxygen, and nitrogen are the four most abundant elements in the human body, making up approximately 96% of the body's mass. Calcium, sodium, potassium, and magnesium are also important elements in the body but are present in much lower concentrations. Zinc and sulfur are present in trace amounts. Iron is important for the production of hemoglobin in red blood cells but is present in very small quantities overall.

The Four Most Abundant Elements in the Human Body Are