Although it is true that mayonnaise does not contain any gelatin whatsoever, it does contain quite a few calories and carbs which those who are on a diet will want to watch out for. If you like so many other people these days are trying to lose weight, it will be important to avoid foods that are packed with carbs and fat like mayonnaise.

It is highly recommended that you avoid putting a lot of mayonnaise on your sandwiches or into certain dishes as an ingredient. Gelatin does not really have any nutritional purpose and is not naturally-occurring so you will want to avoid consuming it as much as possible.