Oxyphen Keto XR Diet:- Focus on whole foods.Although eating natural or whole foods is technically not 100% required to restrict carbohydrates, eating processed foods will not help you get rid of cravings or be good for your body. Check the section below for more on what low carb foods are best. Oxyphen Keto XR is a metabolic state in which the body burns fat for fuel instead of carbohydrates.It’s very effective for weight loss, energy and mental clarity. Some people opt to count carbs diligently and some choose to simply focus on eat low carb/keto foods. Most fruits are too high in carbs to include on a ketogenic diet, but berries are an exception.