Beta-glucans, β-glucans, Beta-d-glucans, polysaccharides… typing these into a search engine can lead you down a rabbit hole of scientific jargon. Luckily, behind all the technical terms, beta-glucans are not too complicated, and may have benefits for your health. Let’s take a refreshingly simple look at what they are, and why they might make a great addition to your diet. What are beta-glucans? To a simple question, a simple answer: beta-glucans are a type of fibre.