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It’s a variation on the “eat-stop-eat” method and calls for a total 24-hour fast only once or twice a week.

It’s a way to cut calories, and its proponents cite cellular repair, improved insulin sensitivity and other benefits. But the science is weak.

It’s okay to become enthusiastic about your new diet plan, but if you become too entrenched, it might be hard to change if your diet stops working for you.

The diet emphasizes fruits, vegetables, nuts, seeds and whole, unprocessed foods.

No cooking allowed. Diet proponents claim cooking takes away nutrients and enzymes. The diet is heavy on fresh and dried fruits, vegetables, nuts, and seeds.

Considered a cardio-protective diet plan, the Engine 2 diet is essentially a vegan diet without the vegetable oils. Protein comes from pulses and soy foods.

An interesting take on the flexitarian diet, the VB6 stipulates no meat, diary, eggs, or other animal products before 6 p.m., and unrestricted eating in moderation after that.

One of the least restrictive diets, it starts with fruits, vegetables, and whole grains, then permits lean meat, poultry, or fish in moderate portion sizes.

It emphasizes fruits, vegetables, and whole grains, with beans and legumes providing the protein. Variations include an allowance for diary or eggs.

These dietary plans aren’t necessarily vegan. They put plants first, but allow for proteins from fish or animal sources.