The invention discloses nutrition agent including superoxide dismutase. The invention is mainly composed of camellia chrysantha, spirulina and superoxide dismutase which all having the functions of regulating the sub-healthy state of human body, supplementing nutrient and anti-aging, but the effect is not clear, and the function is not strong when being used alone. The invention has scientific and rational ratio and preparation, in order to realize the synergistic value increment function among the materials, and thereby the bioavailability is further improved, and the specific effect is realized. The actual application confirms that the invention can enable the elderly to generally look rosy and the age spot to fade out, stabilize the blood pressure, improve the sleep, normalize the stool, improve the appetite and eliminate the fatigue. The stain and the chloasma of the middle-aged women can be mottled, the wrinkles fade out and are fined, the skin elasticity is enhanced, the fatigue is eliminated, the disease-resistant capacity is strengthened, and the emotional change state is improved. And thereby, the invention has good health caring function, and is a better nutriment to improve the sub-healthy state of human body.