Nausea, vomiting, dry mouth and poor appetite often occur in Parkinson’s disease patients, which may be caused by the disease itself or due to the use of anti-Parkinson’s disease medications. It is important for people with Parkinson’s disease to eat a nutritious diet, but it is also important to be aware of food preparation and eating precautions. Food preparation: Food preparation should be soft, easy to digest, easy to chew and swallow, and supplied as semi-liquid or soft food. Early or mild PD patients choose regular or soft rice; middle or moderate patients are recommended to use soft rice or semi-liquid; while advanced or severe patients need tube feeding diet. Eating should be pleasant in a relaxed environment and atmosphere to promote appetite and savor the diet. If taking levodopa, the best effect is on an empty stomach. Patients should take levodopa 1 hour before or 1.5 hours after meal, 100-140mL of water, which can make levodopa be absorbed faster in the body. The eating environment should be: Choose foods that are easier to prepare. Use colorful tableware or eat in an environment with soft music in the background. Don’t eat alone, invite your neighbors or guests to eat with you or eat out. Try to make the food look appealing. Eating tips for nausea and vomiting: Avoid orange or grapefruit juice, which is too acidic and can aggravate nausea; drink slowly; avoid beverages with meals and drink between meals. Avoid fried, greasy, and overly sweet foods; don’t mix hot and frozen foods; eat foods at room temperature because the smell of hot food may cause nausea; rest for a while after meals and elevate your head. Too much activity after a meal may exacerbate nausea symptoms and even trigger vomiting; don’t brush your teeth after a meal; and eat small, frequent meals. If you wake up feeling nauseous in the morning, eat some saltine crackers before you get out of bed or eat a little high-protein food (e.g., lean meats, cheese) before you go to bed. When you feel nauseous, eating a small amount of something may ease your symptoms. If none of the above relieves your nausea, consult your doctor immediately. Points to remember about eating when you have dry mouth: Drink at least 8 glasses of water a day, but for people with Parkinson’s disease with heart disease, fluid intake should be adjusted according to your doctor’s recommendations. Limit your intake of caffeine (contained in coffee, tea, cola, chocolate, etc.) Caffeine may interfere with your medication and may make you more dehydrated. Drink a little water with each bite of food; this will soften the food in your mouth and help you swallow. Spooning a little sauce over your food can soften it, such as gravy, stock, sauces, and melted butter. Sour candies and fruits increase saliva production and relieve dry mouth. Be careful not to use mouthwash containing alcohol as it can make your dry mouth symptoms worse. Eating points for poor appetite: Poor appetite may be caused by depression, consult your doctor, depression can be treated and once you are treated your appetite will improve. Avoid non-nutritious drinks. Eat small, frequent meals. Taking a walk or participating in small activities may boost your appetite.