If you have a food or gluten allergy, then you know how difficult it can be to trust the food you're eating -- especially when out at a restaurant or travelling.

For people with food sensitivities, dining out can be a hassle at best and dangerous at worst. But soon, a new portable gadget the size of a mass-market paperback could allow you to quickly test meals for allergens and gluten at the table.

The NBC evening news recently featured an Alpha-gal Syndrome (AGS) patient whose correct diagnosis consumed 11 years, including an unnecessary gall bladder removal.