Gut Feeling Protein Prebiotic Powder $39.95 Gut-Feeling is a superfood supplement from Plant Science – and it’s for humans! Improve your health too by adding this fibre, protein and prebiotic supplement to your diet for a nutrition boost every day. What is it? Gut-Feeling is a natural plant based hemp protein prebiotic powder packed with fibre. You will love this nutrient packed combination of plant-based protein and prebiotics naturally flavoured with organic raw cacao.