Weak pulse is the result of insufficient heart contraction, which can be checked by blood tests, electrocardiogram and cardiac ultrasound. After ruling out organic heart disease, it is considered to be caused by weakness and malnutrition, such as chronic gastritis leading to loss of appetite and lack of nutrition due to long-term dietary intake, so the pulse is weak. Weight loss people due to eager to achieve, want to quickly make weight loss to take excessive dieting methods, eat fruit every morning, noon or night or less food, due to the extreme lack of nutrition will lead to a decline in heart contraction function, so the pulse is weak, common dizziness, weakness, mental fatigue, atrophy, speech breathless, then as long as you resume a normal diet, scientific weight loss, weak pulse will gradually improve . Do not be partial when restoring the diet, recipes should be diversified, but eat less meat, otherwise it will lead to indigestion or affect the appetite, the weak pulse will be difficult to recover.