Yes, when making it from scratch as you know exactly what ingredients you are using. If you're not making your pesto from scratch, I would highly recommend reading the label to make sure quality ingredients are being used. Sometime, store brand pesto can contain unhealthy fats depending on the brand. It's also important to know that even if pesto is made with a healthy fat it should still be consumed in moderation as even the calories in a healthy fat can add up.