What can I eat to build up my stomach?

Wasting due to stomach damage can be toned up by taking the formula Yi Stomach Tang and Si Jun Zi Tang.
1. Beneficial Stomach Soup: Beneficial Stomach Soup is a formula for treating deficiency of stomach yin. The stomach is the middle ground of the middle jiao and is the main receptor. Heat illnesses that burn the yin fluid, or excessive consumption of spicy food, or excessive use of vomiting and hypodermic agents, or prolonged gastric illnesses, will easily lead to deficiency of stomach yin, and the stomach will not be receptive to the internal growth of heat. Clinical manifestations of hunger, dry mouth and tongue, dry stools, leading to emaciation.
2. Si Jun Zi Tang: Si Jun Zi Tang is a formula for treating qi deficiency of the spleen and stomach. Spleen and stomach qi deficiency is mostly caused by insufficient endowment, diet and fatigue, which damages the qi of the spleen and stomach and makes it unable to receive and transport water and grains, and the human body is unable to take essence from water and grains for a long period of time, which leads to emaciation. Clinical manifestations include pale face, low voice, shortness of breath, and loose stools.
Wasting caused by stomach disease can take the above formula, but need to be taken under the guidance of Chinese medicine practitioners to identify the evidence, not self-medication, to avoid adverse consequences.