Store › Smart Swaps Guide Image 1 of 1 Smart Swaps Guide $30.00 Our smart swap guide shows how much value a protein, carb, fat and fibre is held in a 10, 20, 30 or 40-gram weighted option. Add To Cart Added! Our smart swap guide shows how much value a protein, carb, fat and fibre is held in a 10, 20, 30 or 40-gram weighted option.