Dr. Raquel Rozner, MD

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

At the most basic level, nutrition counseling can be simply a talk with a family physician. Doctors receive training in nutrition as part of their education, and they are generally qualified to make recommendations about diet for their patients. Some doctors take a professional interest in nutrition and become experts by taking extra classes or studying nutrition in their practice. In general, however, complex nutrition guidance will be referred to a nutrition specialist, generally a dietitian.

Registered dietitians are nutrition experts that have passed specific higher education, accreditation, and internship requirements. They may work in hospitals, nursing facilities, or private practices to provide nutrition therapy and advise patients about their health and diet. Like dietitians, nutritionists also work to counsel patients about food and health. Some nutritionists have degrees in nutrition or food science, but the title 'nutritionist' is not protected by law. In the United States, anyone is allowed to call themselves a nutritionist, regardless of their education level.

Nutrition counseling can be useful for anyone who is looking to get to a healthy weight, manage a chronic illness through diet, or simply lead a healthier lifestyle. Some examples of issues that benefit from nutrition counseling include:

• Obesity
• Eating disorders
• High cholesterol
• High blood pressure
• Food allergies
• Kidney disease
• Digestive disorders, such as irritable bowel syndrome
• Cancer
• Pregnancy or lactation
• Participation in competitive sports

During a nutrition counseling appointment, the provider -- doctor, nutritionist, or dietitian -- typically will look over a the patient's medical history and talk to them about their current diet, their goals, what kinds of food they like, and any problems that they are currently struggling with in their health or diet. Then the specialist will help the patient set food goals and create a customized plan to help them meet their nutritional needs. Nutrition specialists may also offer classes, workshops, cooking demonstrations, and more. Their role is not to lecture the patient about what one should be eating, but to offer education and resources to make eating healthy foods easier.