Looking at diet and carotid artery health

The study, published in the American Journal of Clinical Nutrition, included 1,080 women over 70. They answered questions about their intake of dairy and other foods and about their health. Three years later, they underwent medical tests including ultrasound measurements of carotid artery wall thickness.

The researchers made the following observations about dairy intake and carotid wall thickness:

• Women who ate at least 100 grams (almost 4 ounces) of yoghurt daily had less carotid artery thickening than women who ate less yoghurt.
• Previous research suggests that the 0.024 ml difference in carotid wall thickness between yoghurt eaters and noneaters seen in this study might be associated with a large difference in risk of stroke or heart attack.
• Other dairy products, such as cheese and milk were not related to carotid wall thickness.

Yoghurt eaters have healthier blood vessels

Although this type of study cannot prove that eating yoghurt improves arterial or cardiovascular health, it does show a relationship. The study’s authors felt the relationship they observed was strong enough to suggest that eating “100 grams or more per day may play a role in stroke and atherosclerosis prevention.”

Remember, the proven ways to keep artery walls healthy are to eat a healthy diet with lots of fruits and vegetables, stay physically fit, maintain a proper weight, manage stress, and don’t smoke.

Live well with live food

Here are some other good reasons to include yoghurt in your regular diet:

• Keep the digestive tract moving smoothly. Studies show that yoghurt with living cultures can help people with diarrhoea, constipation, irritable bowel syndrome, Crohn’s disease, and ulcerative colitis. It may also be helpful in treating heartburn and peptic ulcer disease.
• Cancer prevention. Yoghurt and other fermented dairy products have been found to reduce the risk of colon cancer.
• Cavity prevention. Yoghurt-eating has been found to reduce the levels of cavity- and gum disease-causing bacteria in the mouth.
• Diabetes prevention. Eating low-fat dairy foods like low-fat yoghurt is associated with a lower risk of type 2 diabetes.
• Boost the immune system. Some studies have found that the bacteria in probiotic yoghurt with live active cultures can stimulate immune cells and prevent infections, including the common cold.

(Am J Clin Nutr 2011;94:234–9)