No problem if you don't have grade b syrup. The reason for grade b is the mineral content. Get a good liquid mineral and add the daily recommended amount to your lemonade. The one I use is linked below. I have the 20 oz bottle of liquid ionic trace minerals. The minerals are a very important ingredient. I use them everyday when I'm not on the fast. We live on a farm and our animals ALWAYS have minerals available. Our livestock would have all kinds of problems if they didn't have it. Why are humans any different?