Here are a few considerations:

Potential Allergens: People with allergies to mustard or soy should avoid Mayonnaise.

Spoilage: If mayonnaise is not stored properly or is past its expiration date, it can harbor harmful bacterias.

Digestive Issues: Some people may experience digestive discomfort if they consume mayonnaise.

High Caloric Content: Mayonnaise is high in calories and fat, which can contribute to weight gain if consumed excessively.

Sodium and Cholesterol: Mayonnaise is high in sodium and cholesterol, which can be a concern for those with high blood pressure or cholesterol levels.

To mitigate these risks, it's essential to consume mayonnaise in moderation, ensure it's stored properly.

When eating mayonnaise with momos or any food, practicing good food hygiene and being mindful of portion sizes can help minimize potential side effects.