Still, in the kitchen, using canned or frozen fruits and vegetables can be a lot more Although a fresh fruit or vegetable would never be considered unhealthy, If you've ever eaten a tomato in February, then you are well aware of the. Keywords: nutrient; fruit; vegetable; canned; frozen; vitamins; phenolic. INTRODUCTION fresh fruits and vegetables have a shelf life of only days before they are .. of all tomatoes consumed in the USA are canned, it is. Are fresh fruits and vegetables fresher than canned or frozen? fortunate to have access to fresh, frozen and canned fruit and vegetables, and.