Yellow squash is a mildly sweet vegetable, available during the summer months. An ideal alternative to zucchini, 1 cup of chopped yellow squash provides a variety of vitamins and minerals that the body requires to maintain cellular function, the nervous system and cellular structure. According to HealthAlternatives2000.com, yellow squash contains more than 10 vitamins.
Yellow squash is a good source of vitamin C -- a cup of the vegetable contains 41 percent of your daily requirement. Vitamin C, a water-soluble vitamin, is also called ascorbic acid. It is essential for connective tissue integrity; it contributes to the structure of blood vessels, ligaments and bone. Vitamin C also plays a role in neurotransmitter production, in addition to energy production. It acts as an antioxidant; therefore, it protects the body from free radical damage. Vitamin C deficiency results in a condition called scurvy, which causes inflamed, bleeding gums, mood disturbances and lethargy, according to the Linus Pauling Institute.
Yellow squash contains all of the B vitamins, except vitamin B-12. The B-complex vitamins help to produce energy and form red blood cells. Yellow squash is a decent source of vitamin B-1, providing 5 percent of the daily requirement for adults. Vitamin B-1, also called thiamin, maintains a healthy nervous system and improves cognition. A vitamin B-1 deficiency causes Beriberi, a condition that causes neurological impairment and gastrointestinal disturbance, according to MedlinePlus.
A 1-cup serving of yellow squash provides190 International Units off vitamin A, or 2 percent of the daily requirement, according to HealthAlternatives2000.com. Vitamin A plays a role in a number of physiological processes, for example vision, immunity, cellular structure, bone structure and reproduction. Vitamin A contributes to the cellular structure of the eye. A lack of vitamin A results in visual impairment. The immune system protects the body from invading bacteria and viruses. Vitamin A maintains the integrity of the immune system and a deficiency results in increased severity and frequency of disease. The skin depends on vitamin A to maintain cellular structure, without vitamin A the skin cells fail to renew, according to Colorado State University.
A cup of yellow squash contains 4.1 micrograms of vitamin K, a fraction of the recommended daily requirement of 90 to 120 micrograms.Vitamin K is a fat-soluble vitamin; it is stored within the liver and fatty tissue. The vitamin plays an important role in bone mineralization and thus contributes to bone structure. Vitamin K deficiency may result in weakening of bone and Osteoporosis. The fat-soluble vitamin is also important for blood clotting. Vitamin K helps to produce the cells and fibrous tissue needed to form a blood clot, according to the University of Maryland Medical Center.