Here’s what you should eat to stay healthy and strong.

Protein has been a superstar nutrient since the boom-days of the super high protein diet. People would sit down to giant plates of meat, and somehow, magically, it seemed, lose weight. Protein and fat are largely at the core of what makes these diets work yet, finding alternative protein sources (other than animal sources) can seem tricky.

“When we think about protein, most people generally think of anything coming from an animal base, whether it be, meat or fish or dairy products,” says Katherine Zeratsky, a registered dietician and nutritionist at the Mayo Clinic. “There are, however, other alternatives that also offer complete protein.”

Whether you’re just looking to get more veggies in your diet, or investigating going completely vegan or vegetarian, there are plenty of non-meat options out there that can help you meet your protein needs. Here’s how to get enough protein in your diet from alternative sources.