Nuzest - Clean Lean Protein Just Natural 1kg Nuzest Clean Lean Protein provides the building blocks for vitality, repair, recovery and muscle growth. Our unique pea protein formula is 100% plant-based, low in allergens and extremely low in carbohydrates. Made with minimal processing and ingredients, it comes complete with all nine essential amino acids, is a natural source of iron, tasty and easy to digest. Ingredients: 100% Pea Protein Isolate.