The efficacy of yellow dragon fruit is mainly to nourish Yin and moisten dryness, from the color, the outer skin is yellow, the inside of the meat is white, from the perspective of yellow skin and white meat, yellow into the body’s spleen and stomach, white into the body’s lungs, from these two colors, yellow dragon fruit belongs to the body’s lungs and spleen and stomach. In terms of taste, it is sweet in taste and very juicy, so it enters the yin of the human body and has the effect of nourishing yin and moistening dryness. From the point of view of its sweet taste, sweet has a tonic nature, so it has the effect of nourishing the yin essence of the human body, replenishing the yin fluid of the human body and moistening dryness and quenching thirst. From its efficacy, suitable for people with Yin deficiency fire, but diabetic patients are not suitable, at the same time there is damp heat in the stomach and intestines, that is, dampness is hot, phlegm is also not very suitable for people to eat yellow dragon fruit.