From Unilever:
The products on this list are not suitable for a Vegetarian diet due to the presence of Whey powder which may be sourced from non-vegetarian sources.
Mini Magnum Almond
Mini Magnum Dark (Ecuador)
Mini Magnum Double
Mini Magnum Strawberry Chocolate
Magnum Almond
Magnum Classic
Magnum Dark Ecuador
Magnum Double Caramel
Magnum Java Milk Chocolate
Magnum Temptation Caramel
Magnum Temptation Chocolate
Magnum White