Absolutely. Please disclose these when you secure your place on the trip so that we can make our local providers aware. Your trip leader will not be able to accommodate any dietary requirements that have not been disclosed in advance. If you have a gluten free, vegan or vegetarian diet consider bringing some snack food from home. There will be plenty of fresh fruit in local markets, however, beyond that you may find that variety in snack foods for these diets may be somewhat lacking.