Many believe that health maintenance requires expensive tonics or various health supplements; in reality, for the average person, the most effective health practices are found in their daily meals. The principle of “food as medicine” is at the core of Chinese health preservation. By appropriately combining and consuming common dietary ingredients correctly, one can regulate the body, improve physical constitution, and avoid suboptimal health conditions. Dietary health preservation does not prioritize luxury but rather focuses on appropriateness, regularity, and wellness.
  The health status of the human body is closely related to dietary habits. The spleen and stomach serve as the foundation of postnatal constitution, responsible for transforming and transporting all ingested food to supply the body with qi, blood, and energy. Prolonged irregular eating patterns, excessive consumption of oily and salty foods, or selective and unbalanced diets can progressively impair spleen and stomach function, leading to various suboptimal health conditions such as fatigue, gastrointestinal discomfort, excessive dampness, and compromised immunity. Conversely, adhering to a scientifically sound dietary regimen that gently nourishes internal organs enables systemic regulation from within, thereby maintaining bodily equilibrium.
  Daily health maintenance should primarily adhere to the principles of a light diet and balanced five flavors. The five flavors—sour, sweet, bitter, spicy, and salty—are corresponding to the five internal organs of the human body. Prolonged consumption of a monotonous or overly seasoned diet may impair the respective organs. In daily cooking, minimize frying, braising, and pickling techniques; reduce salt, sugar, and spicy ingredients to preserve the natural nutrients of the ingredients. Additionally, maintain a rational combination of meat and vegetables—avoid long-term strict vegetarianism or excessive consumption of rich meats and fish. High-quality meats, vegetables, and grains should be consumed in balanced proportions to meet the body’s requirements for vitamins, proteins, and dietary fiber.
  Secondly, adhere to regular and measured meal schedules. Breakfast should be warm and stomach-nourishing; avoid eating on an empty stomach or skipping breakfast altogether. Mild ingredients such as millet, oats, eggs, and coarse grain porridge can stimulate spleen and stomach functions. Lunch should be nutritionally adequate to replenish the energy expended during the day. Dinner should be light and small in quantity to reduce digestive burden on the gastrointestinal tract and prevent food retention and dampness accumulation before bedtime.
  In addition, dietary supplementation should be tailored to individual physiological conditions, avoiding indiscriminate use of tonics. Individuals with a hot constitution are advised to consume heat-clearing and dryness-moistening foods such as winter melon, mung beans, and lotus root; those with a cold constitution may appropriately incorporate warming ingredients like Chinese yam, red dates, and ginger. There is no need to blindly pursue trendy tonic foods—home-cooked ingredients tailored to one’s specific constitution represent the most cost-effective health-promoting options.

The essence of dietary health preservation lies in persistence. Consistent daily healthy eating habits prove far more effective than one-time tonic interventions, as they help maintain physical well-being and mitigate recurrent health complaints.