Some diets that are used to reverse heart disease allow only plant protein, not animal protein.

While it is possible to get all the protein you need from non-animal sources — which basically means following a vegetarian or even a vegan diet — I believe that animal protein plays an important role in good health.

However, you do have to be mindful about the type and amount of protein you consume.

The best thing to do is consume organic sources of protein, such as livestock that has been organically fed and raised.

Eat small amounts of chicken and leave red meat for special occasions. If you’re eating eggs, stick with the whites.

Most of your animal proteins should come from fish. And it really doesn’t matter what type of fish you eat.

Oily fish, like salmon, are rich in omega-3 fats; leaner fish are nutrient-rich without being high in calories.

You don’t necessarily have to weigh your protein strictly, but I advise limiting portions to about 4 oz., which is about the size and thickness of a deck of playing cards.

Or you can let your plate be your guide. Studies find that using a smaller plate makes people eat less.

Try filling three-quarters of your plate with veggies and use the remaining quarter for your protein.