Sugar is bad for you, isn't it? It's true if you eat too much of it — like glucose. But did you know that it's also essential? It's the fuel our bodies need. Some glycans (sugars) called glycans strengthen the immune system or feed beneficial bacteria in the gut. Others attract viruses or help cancer cells grow. We don't yet know exactly which glycans are beneficial and which are harmful. That's why I'm creating a molecular candy shop in the lab, containing a collection of glycans that I produce using genetically modified cells. This will allow me to investigate which glycans have a positive effect. These can then be used to specifically boost the immune system or strengthen the gut microbiota. Healthy sugars — I like them!