A healthy human body must maintain a slightly alkaline state, and it is advisable to have a pH value of about 7.3. If the blood of the human body is acidic, blood viscosity and cholesterol are relatively high, people will be easily fatigued, and the human body's resistance will also decline. It is acidic food (except dairy products and blood products), which is rich in protein, carbohydrates, fats, etc. In the holiday diet, you must eat only big fish and meat, and you must have alkaline food to eat in order to get the acidity and alkalinity of the human body. Balance. Kelp has the highest alkali content, followed by greens, lettuce, lettuce, celery, shiitake mushrooms, carrots, radishes and more. The following statements are contextual:. ['Eating kelp can eliminate human fatigue.', 'Acidic blood will cause fatigue.', 'Human health is closely related to pH.', 'The PH value of the human body is optimal.']