According to a Dietitian

The main ingredients in mayonnaise are eggs oil vinegar lemon juice and often water. It doesnt contain milk products at all. Does Mayo Have Dairy Find Out If Mayonnaise Is Safe For A Dairy Free Diet Theyre the perfect easy appetizer or snack. Is mayo dairy free . However while in the majority of mayonnaise products are dairy-free you should check the label to verify that milk is not listed in the ingredients if dairy is a concern for you. Arla produce a Lactose-free semi-skinned fresh milk and its good. This is true for the products that are on shelves as well as homemade. Most people believe it does and there is even a rumor going around that says Hellmans a popular brand of mayonnaise contains milk. Some mayonnaises have cream added in for flavour. Dairy products are foods that contain milk such as cheese yogurt and butter. Tiger May-o still selling the garlic version Tesco no longer do a dairy free mayo. Is Mayonnaise Dairy. After all its dairy-free and cheap.