Being overweight-conditions that increase oxygen demands include obesity, smoking, exposure to temperature extremes, and stress. a client with chronic bronchitis should drink at least 2,000 ml of fluid daily to thin mucus secretions; restricting fluid intake may be harmful. the nurse should encourage the client to eat a high-protein snack at bedtime because protein digestion produces an amino acid with sedating effects that may ease the insomnia associated with chronic bronchitis. eating more than three large meals a day may cause fullness, making breathing uncomfortable and difficult; however, it doesnt increase oxygen demands. to help maintain adequate nutritional intake, the client with chronic bronchitis should eat small, frequent meals (up to six a day).