The skin is the largest organ in the human body and its condition speaks volumes about your health. Rashes, acne, eczema, psoriasis, and oily, dry and aged skin, may reflect stress, lack of exercise or a poor diet. Improving your skin's health is possible in a variety of ways, including adding more skin-supportive nutrients in your diet. Guava is a tropical fruit that tastes like a cross between a strawberry and a pear, and it provides several nutrients that support skin maintenance. Including it in your diet may help you make progress toward the beautiful complexion you want that is more than just skin deep.

Treat skin discoloration, such as dark circles, spider veins, rosacea, acne irritation and overall splotchiness, with vitamin K. It heals because it improves blood coagulation, which is impaired in cases of skin redness and irritation. A guava provides 1.4 micrograms of vitamin K, which is about 2 percent of the 80 micrograms Food and Drug Administration daily value.

The amount of vitamin C in a guava is more than twice the 60 milligrams of the FDA daily value, which is good news for skin healing because it contributes to generation of collagen, the substance that gives skin its firmness. Include more vitamin C-rich foods like guava in your diet to improve the tautness of your skin and reduce the impact of aging.

A guava provides 2.9 grams of lycopene, an antioxidant that protects healthy cells from toxins that accumulate in the body due to metabolism and environmental pollution. The damaging effect of toxins includes premature aging, because they damage DNA in charge of growth and development.

A substance that provides health benefits, including hydrated skin, is water. While drinking water helps you meet the eight glasses each day the body requires, an additional source that provides the remaining requirement is food. A guava provides 81 percent of its composition as water. Slice the juicy fruit and serve it in a tropical fruit salad with coconut, pineapple, papaya or mango, or juice it and benefit from its nutrients served over ice.