The exact cause or rosacea to date is still unknown. However, several researchers have observed that some factors such may trigger episodes of flushing that can result in the development of the condition. One such trigger is diet. Many rosacea patients have claimed that eating specific foods leads to an outbreak of the condition, including burning, flushing, and the presence of pustules and papules.
One kind of diet that could trigger flushing is eating foods that contain or set off the release of histamine. Histamine initiates vasodilation and therefore will amplify the symptom of rosacea. Some of the foods that contain histamine or release it are alcohol, cheese, fish, milk, tomatoes, spinach, dried fruits, chocolate, and so on.
Consuming foods containing high levels of Niacin are thought to cause flare-ups as well. Niacin, also referred to as vitamin B3, promotes the production of prostaglandin and leads to flushing and dilated blood vessels. Some of the food rich in Niacin consist of eggs, spinach, lobster, salmon, tofu, and shrimp.
Eating foods that contain salicylates is thought to cause aggravation for those with rosacea. Foods that contain high levels of salicylates include green peppers, chili, radish, raisins, pineapples, peanuts, almonds, mint, pepper, ginger, honey, tea, wine, champagne, among others.
Eating a diet that if high in carboydrates causes the product of insulin. The secretion of insulin then leads to the production of Phospholipase A2, which activates the pro-inflammatory Arachidonic Acid and irritates rosacea. Foods that contain high amounts of carbohydrates include rice, potatoes, cereals, bran, beans, pasta, and bread.