Helicobacter Pylori (H. pylori), the bacteria that causes stomach ulcers, is reported to be inhibited by manuka honey with a sufficiently high level of Methylglyoxal, manuka honey's naturally-occuring antibacterial constituent.  (Douglas I. Rosendale,  International Journal of Food Science and Technology 2008, 43, 2257-2267)  The researchers reported Manuka Honey with a high level of anti-bacterial activity not only decreases pathogen growth in the gut, but also encourages good, pro-biotic gut bacteria.

Unlike the hydrogen peroxide in ordinary honey, the Methylglyoxal in high MGO™ Manuka Honey is not neutralised by enzymes in the intestinal tract and therefore remains effective against the bacteria. Manuka honey has no adverse affects on "friendly" bacteria essential to the digestion process.  

Helicobacter Pylori infection contributes to the development of diseases such as dyspepsia (heartburn, bloating and nausea), gastritis (inflammation of the stomach), and ulcers in the stomach and duodenum.

Infection occurs when an individual swallows the bacteria in food, fluid, or from contaminated utensils.

H. pylori is a fragile bacteria that finds an ideal home in the lining of the stomach. It has long protruding threads which attach to underlying stomach cells. The mucous layer that protects stomach cells from acid also protects H. pylori.

Although Helicobacter Pylori bacteria do not invade stomach cells as other bacteria can, an infection does cause the body to react with white blood cells moving to the area and antibodies developing in the blood.

Helicobacter Pylori infection is one of the most common worldwide and increases with age. In many cases it does not produce symptoms and infection can occur without a person knowing it.

Read one woman's story here: http://www.articlesbase.com/alternative-medicine-articles/manuka-honey-cured-my-stomach-ulcer-a-patient-tells-her-story-a-scientist-explains-how-it-works-1973497.html

Manuka honey with high levels of MGO™ has a soothing effect on ulcerative colitis, often allowing the digestive system an opportunity to recover.

Ulcerative colitis is inflammation of the colon, the lower part of the bowel (intestine) or digestive system.

By the time food has passed through the small intestine and reaches the colon, most of the food has been absorbed and only waste products are left. It is the job of the colon to absorb the excess water (as well as some fibre and potassium) from the waste and move the waste to the rectum.

When the lower bowel becomes inflamed, swelling and ulcers develop in the colon. This is known as ulcerative colitis, a chronic condition.

Ulcerative colitis may cause weight loss, fever, dry mouth, sunken eyes, a fast heart beat and pale skin. Loss of appetite, nausea and vomiting can occur. There may be some difficulty controlling bowel motions and it may feel that the bowel has not emptied properly.

People with ulcerative colitis have a higher chance of getting cancer of the colon.

The main symptoms are frequent attacks of bloody diarrhoea and pain in the lower abdomen, interspersed with periods of no symptoms.