Foods that decrease saliva production and contribute to dehydration generally include those high in salt, sugar, caffeine, or alcohol, as well as dry, coarse, and spicy foods. These items either directly dehydrate the body, irritate the oral tissues, or require excessive moisture to swallow, making dry mouth (xerostomia) worse.

Here are the main categories of foods and drinks to avoid if you suffer from a dry mouth:
1. High-Sodium (Salty) Foods
Salt absorbs moisture, drawing it away from the tissues in your mouth, which intensifies feelings of dryness.

Chips and pretzels
Fast food and processed, packaged meals
Deli meats (bacon, ham)
Salty nuts
Soy sauce and savory sauces
Pizza

2. Sugary Foods and Drinks
Sugar can cause the body to excrete fluids and often leads to an imbalance in saliva pH.

Candies, sweets, and mints
Soda and sugary fruit juices
Dried or candied fruits

3. Dry, Crunchy, or Coarse Foods
These foods are difficult to chew and swallow when saliva production is already low, requiring extra moisture to pass.

Crackers and dry toast
Tough meats
Dry cereals
Raw, hard vegetables (e.g., raw carrots)
Pastries and cookies
4. Caffeinated and Alcoholic Beverages
Caffeine and alcohol act as diuretics, meaning they increase urination and remove fluids from the body.

Black, white, and green teas
Energy drinks
Wine, beer, and liquor
Alcohol-based mouthwashes

5. Acidic and Spicy Foods
These can cause a burning sensation and further irritate a mouth that lacks the protective barrier of saliva.

Citrus fruits (oranges, lemons, grapefruit)
Tomato-based sauces and juices
Vinegar-based dressings/condiments
Hot sauces, hot peppers, and black pepper

Tips to Manage Dry Mouth


Increase water intake: Sip water throughout the day.

Use a humidifier: A humidifier at night helps keep the mouth moist while sleeping.

Chew sugar-free gum: Choose gum with xylitol to stimulate saliva flow.

Moisten foods: Add gravy, broth, or sauce to food to make it easier to swallow