DEAR DR. GOTT: I have had great success with your no-flour, no-sugar diet. You have indicated that natural sugar from fruit is OK. I drink 100 percent cranberry juice, and the label states that the ingredients are 100 percent fruit juices from grapes, cranberries and apples (water, juice concentrates), natural flavors, ascorbic acid (vitamin C) and citric acid. The nutrition facts state the product contains 35 grams of sugar, which I assume is natural fruit sugar. I drink many glasses daily, but now wonder whether I have been inadvertently consuming added sugar and not natural fruit sugar.

DEAR DR. GOTT: Please write an article on smoking.

DEAR DR. GOTT: I have been on Armour Thyroid for many years, but all of a sudden, I cannot get it. Of course, I have Synthroid as an alternative. Well, I have tried it and just can't handle it. Why, all of a sudden, is Armour Thyroid on back order no matter where I check? Are the drug companies not making enough money on it? It's a low-cost drug. No one I have talked to seems to know the answer. I was hoping you might be able to answer this because I would imagine a lot of patients use it.

DEAR DR. GOTT: During the latter part of 2007, I was diagnosed with metastatic bladder cancer. My doctors recommended chemotherapy treatments from November 2007 to May 2008.

DEAR DR. GOTT: I have three new uses for vinegar that I am sure you have not heard of before. I enjoy your common-sense approach to medicine and thought that you would enjoy these.

DEAR DR. GOTT: I am a 74-year-old female. Over the years, my nails have gotten worse. They are thin, ridged, splitting and shredded. I have tried several remedies that were supposed to help, with no change.

DEAR DR. GOTT: My son is 56 years old. Two years ago, he had a tooth pulled that resulted in a dry socket. After five weeks of pain, he went to a different dentist, who pulled more of his teeth. My son was told that this would stop the pain. When it didn't, he was given pain medication. After nearly two years, he was advised to go to a neurologist because the pain was affecting his entire face and jaw and occasionally his ears.

DEAR DR. GOTT: Although I am in reasonably good health for an 87-year-old woman, I need some help in order to get a good night's sleep. I had been taking an over-the-counter sleep aid off and on for quite some time until I read that all the OTC aids contain diphenhydramine. I have heard that this drug can cause delirium and may lead to Alzheimer's in older adults.

DEAR DR. GOTT: My grandson is 3 years old, 30 pounds and on the thin side. The problem is his picky food habits. The foods he will eat willingly are Cheerios, Ramen noodles, chocolate cake, ice cream, wieners, bacon, sausage, scrambled eggs, cashew nuts, sausage-and-cheese pizza, pancakes and PediaSure. If he continues eating in this manner, will he suffer the consequences of high cholesterol, heart problems, high blood pressure and other issues?

DEAR DR. GOTT: My 13-year-old grandson has been plagued with urticaria for the past two years. It appears on his face and all over his body. His mother has taken him to several specialists, but they cannot seem to find a cause or cure. He manages it by taking Zyrtec and Singulair.

DEAR DR. GOTT: My 14-year-old son recently had a keloid scar removed from the crease of his neck for the third time and had it radiated for the second time. Should I have consulted with more than one radiologist? Is there more than one way to radiate a keloid scar? Are there any other postoperative treatments to prevent the body from producing collagen?