The transition period is one of the most demanding stages in a dairy cow’s life, with rising nutrient requirements and reduced feed intake leading to negative energy balance and body reserve mobilisation. While transition strategies have traditionally focused on body condition, intake and liver function, research highlights the importance of preserving muscle tissue and protein reserves around calving. Isoacids support fibre digesting rumen bacteria, improving nutrient utilisation and microbial protein synthesis. Studies have shown benefits including higher feed intake and glucose levels, reduced fat mobilisation and ketosis markers, better bodyweight maintenance and increased peak milk yiel