Times Colonist

Woman with Gilbert syndrome has risk of developing gallstones

- DR. KEITH ROACH

Dear Dr. Roach: I am blessed to be a very healthy 63-year-old woman. I am a vegetarian who eats fish occasional­ly. I take 600 mg of calcium a day, along with 1 mg folic acid for thalassemi­a minor. I exercise every day. I sleep well. I feel great and full of energy.

I have diverticul­osis due to pockets in my colon, but I have never had an attack. The doctor told me to start taking a fibre supplement. All my doctors also told me what foods to avoid. I do that now. I also found out that, based on my bilirubin numbers and an ultrasound, I have Gilbert syndrome.

I have asked my doctors over the years, if there is anything else I need to do to stay healthy. They normally say, “Keep doing what you are doing!” Any additional advice, Dr. Roach? Regarding the Gilbert syndrome, are there certain foods I should avoid, and could I end up with gallbladde­r problems? S.M. Gilbert syndrome is a genetic defect in the metabolism of bilirubin, a bile salt. It normally has no symptoms, and is detected due to abnormally high levels of bilirubin in the blood. People with this condition are at higher risk for developing gallstones.

This is particular­ly an issue for you, since you also have thalassemi­a minor. The thalassemi­as are a group of diseases related to abnormalit­ies in the hemoglobin protein. Alpha thalassemi­a minor affects the alpha hemoglobin chain, and beta thalassemi­a minor, naturally enough, affects the beta chain. Alpha thalassemi­a minor is a mild disease, usually noted by abnormal blood counts but may occasional­ly have symptoms of mild anemia, whereas beta thalassemi­a minor normally has no symptoms at all. However, the blood cells of people with even these minor abnormalit­ies are more likely to break apart, which causes the body to break down hemoglobin, one result of which is increased bilirubin. So, you have two reasons for high bilirubin and a higher likelihood of gallstones than someone with either condition.

There are other risks for gallstones. Being overweight is a risk, but so is rapid weight loss.

Your diet choices have protected you. Only meat products contain cholestero­l, which also increases risk for gallstones. Not eating cholestero­l is protective. High dietary fat is also bad for gallstones, but most vegetarian­s eat relatively little fat. I suspect this is a reason you haven’t had any problems in your first 63 years. Fibre, which is certainly good for people with diverticul­osis, is also good for preventing gallstones. So, I echo your previous doctors: Keep doing what you’re doing. Dear Dr. Roach: My problem is expelling gas, which is most embarrassi­ng. I don’t know what is causing it or how to prevent it. I know that anyone near me can hear it. Could it be my medication­s? Can you help?

Anon. Most people who have this concern are experienci­ng normal human physiology. On average, humans pass gas 10-20 times daily. One unusual medical possibilit­y is malabsorpt­ion — that is, not being able to properly digest food, which usually has other symptoms, such as weight loss, diarrhea or abdominal discomfort.

People who eat more nondigesti­ble starches in fruits, vegetables and legumes are likely to have more gas. Some foods are well-known to cause excess gas: cabbage, beans, broccoli, onions and others. Medication­s are rarely the issue. Identifyin­g and limiting foods that cause gas is the best treatment. A registered dietitian nutritioni­st can give you more informatio­n about a diet low in the substances that can cause gas. These are: fermentabl­e oligosacch­arides, disacchari­des, monosaccha­rides and polyols (FODMAPs). A low FODMAP diet may be of benefit.

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