When you’re thinking of losing weight or simply want to see how healthy you are, you probably do one of two things: step on a scale or calculate your BMI. But the truth is, these methods don’t tell you anything about how healthy you are– all weight and BMI does is compare how heavy you are to a standard that doesn’t fit your individual goals.

When you’re trying to get healthier, you’re most likely going to lose fat and (hopefully) gain muscle. But BMI and weight don’t differentiate between muscle and fat. So how can you? Through body composition analysis.

Body composition analysis is a method of describing what the body is made of, differentiating between fat, protein, minerals, and body water to give you a snapshot of your health.