'mono-diet' Sometimes, this is the way to go

Eating only one food at a meal is known as a monotrophic meal. If all meals over a period of time consist of a single food, such as oranges or grapes or watermelon, this would be called a monotrophic or "mono" diet.

 Advantages of Mono Meals

There are advantages to the use of monotrophic meals, and it is recommended that at least the first meal of the day be a mono meal and preferably be of one kind of juicy fruit or melon. Obviously, the digestion of a mono meal would not be subject to digestion problems that are sometimes experienced (even to a minimal degree) when so-called compatible foods are combined.  Most fruits lend themselves very well to monotrophic meals. It would be advantageous to program at least one mono meal daily—for the first food of the day.

 Mono Diets Not Recommended for Regular Use
The use of a monotrophic diet for extended periods or regularly for several days every week, is not endorsed. The regular or extended use of a diet consisting of all monotrophic meals, i.e., each meal consisting of a single food, e.g., one kind of melon for one meal, grapes for another meal, romaine lettuce for another meal, alfalfa sprouts for another meal is NOT conducive to optimal nutrition.

Several days on a mono diet, followed by several more days on monotrophic meals, immediately following a prolonged fast—or, perhaps, during a flareup of digestive problems—may prove to be very beneficial. But people who implement diets consisting of all mono meals usually concentrate on fruit and neglect nuts and green leaves. This can be damaging, even disastrous. Such a practice may ultimately result in protein deficiencies and other serious pathological problems.

So, it may make sense to incorporate the 'mono-diet' once in while...just to settle any digestive issues - particularly over the holiday season when we consume too much all at once.