try looking at a min carbs - rich protein and veg diet - it's worked for me (see naomi's thread)....however, patsy, see your doc before embarking on this....I did it to lower blood pressure and the risk of Diabetes 2.....hopefully may be off the tabbies next month, am back down to 5mg of Rampiril a day.
It's more of a lifestyle and, quite frankly, I have cut right back on spuds, cakes, biscuits, sweet desserts, chocolate, ice-cream and rice, the occasional pasta, pasta being semi-ok with a slower release of carbs...