A nutritional supplement for use in physiologically stressful conditions is disclosed. The nutritional supplement may include one or more of vitamin A, vitamin E, vitamin D3, vitamin C, vitamin B1, riboflavin, niacin, folic acid, vitamin B6, biotin, pantothenic acid, vitamin B12, magnesium, zinc, selenium, chromium, copper, iron, alpha lipoic acid, lutein and lycopene.