Generally diet experts deny dairy products to diabetics in fear of increasing the obesity from cholesterol. It has now been seen that a component of fat called trans-palmitoleic acid may actually help to prevent development of diabetes.
This fatty acid is not synthesized in the body, so needs external supplement. This commonly found in yogurt, butter, cheese and milk.
The cis part of palmitoleic acid, cis-palmitoleic acid is synthesized in body; and known to prevent development of diabetes. It is also seen that trans part of this fatty acid may help the cis part to have its effect translated.
Cis and Trans are two forms of the same molecule.