Who Shouldn't Follow The Grapefruit Diet

As you've seen, the Grapefruit diet is one on the most permissive weight loss diets, as it allows you to eat in desired quantities, provided that you keep the number of meals at 3 per day and you eat half grapefruit at each of those meals. This is quite simple, and it can guarantee you that you'd get rid of at least 10 pounds at the end of 18 days of diet.
Does it sound reasonable for you? If it does, take into consideration two small facts about grapefruits:

1. Grapefruits belong to the citric family, and they are acid foods. Acid foods may attack the stomach walls, leading to gastritis or even more severe conditions like ulcer. Note also the once you got an ulcer, you'd have to completely change your lifestyle, because your nutritional rules will become so strict, that you'd be sorry you did such a foolish thing like harming your health for a few pounds less.
2. Grapefruits are known to interact with certain substances used in drugs, like felodipine. This is the active component of a series of heart medication, therefore if you mix grapefruit with such pills, they won't have the expected effects anymore, leading you in trouble. Heart failure is serious, I think everybody is aware of that. Is it worth dying slim?
3. I've encountered some specialist opinions that grapefruit inhibits the insulin production of the pancreas. If you are in good health, this won't probably cause you any harm, but if you already suffer from diabetes, you may even get into coma because if your insulin level decreases suddenly, the body would react in a very violent way and you'll end up by seriously dis-balancing your disease. Repeated dis-balances of an ailment like diabetes will have effects upon many organs in your body, like the legs and the eyes. Would you rather lose weight and go blind or stay chubby and see the surrounding world?

As a conclusion, anybody who knows himself to be suffering from any medical condition should seek for his doctor's consent prior to attempting the grapefruit diet. Who said fruits can't kill?