How can lean dean diet protein help you lose weight? Incorporating a Lean Dean shake into your daily routine helps to stabilise the appetite and reduce sugar cravings. Lean Dean diet protein is a high protein, high fibre blend. Protein and fibre combine to create a feeling of fullness for long periods. An excellent alternative to unhealthy convenience foods, Lean Dean diet protein has been designed to help keep blood sugars balanced, helping you to maintain consistent energy levels throughout the day. Unhealthy processed foods create a blood sugar roller coaster and cause peaks and troughs in energy, together with an over production of the fat storage hormone insulin. On the contrary, protein and fibre bind nutrients for a slower release into the blood stream. Maintaining a healthy blood sugar balance is the key to quality weight management.