New diets seem to surface very often. The latest trends is the flexitarian diet, a style of eating that encourages mostly plant based foods while allowing meat products in moderation.
There has recently been an influx of plant-based meats, however, their are still some people who eat real meat. They're now referred to as "flexitarians".
Being flexitarian is more of a lifestyle rather than a traditional diet, as it has no clear-cut rules of recommended numbers of calories.
The new trend is also great for people who are trying to transition into eating meat-free foods, instead of going cold turkey, you can test the waters and slowly wean yourself off.