Posts Tagged ‘women’

Improving Cholesterol Levels.

Friday, February 5th, 2016

A new study published in the Journal of the American Heart Association concluded that weight loss programs that provide healthy fat, such as olive oil in the Mediterranean diet, or a low-fat, high carbohydrate diet have similar impacts.  Specifically they report that a meal plan high in walnuts, which are high in polyunsaturated fats, has a significant impact on lipid levels for women, and especially those who are insulin resistant. Researchers said “Many diets have said it is okay to eat healthy fats and emphasize olive and canola oils>” “What we found is that a diet high in healthy oils did lower lipids, but it also lowered both good and bad cholesterol. ”

In the study overweight and obese women were enrolled in a one year behavioral weight-loss program, and randomly assigned to one of three diets consisting of either: a low fat and high-carbohydrate diet, a low carbohydrate and high-fat diet, or a walnut-rich, high fat and low-carbohydrate diet. Results showed that all three diets promoted similar weight loss and insulin-sensitivity women lost the most weight with a low-fat diet but that was not the most beneficial diet for lipid levels. The walnut rich diet (polyunsaturated fats) had  the most effect on cholesterol levels by decreasing the low-density lipoprotein (LDL) or bad cholesterol, and increasing beneficial high-density lipoprotein (HDL). The same results were not seen in the high-fat, low -carbohydrate diet group who had monounsaturated fats. At six months individuals in each group had lost about 8 pounds.

Can Green Tea Reduce the Rate of Some G.I. Cancers in Women?

Wednesday, November 7th, 2012

New research published in the American Journal of Clinical Nutrition concluded that women who drink green tea may lower their risk of developing some digestive system cancers such as stomach/esophagus and colorectal cancers. Researchers surveyed approximately 75,000 middle-aged and older Chinese women enrolled in the Shanghai Women’s Health Study and determined whether or not they drank tea, and if so, the type and amount of tea consumption. Most reported they drank green tea. Women who drank alcohol or smoked were eliminated to minimize the influence of these factors.

Researchers found that regular green tea consumption , defined as tea consumption at least three times a week for more than 6 months, was associated with a 17 % reduction in the risk of all digestive cancers combined. A further increase in tea drinking also lead to an increased reduction in digestive system cancers. For example, those who drank about 2 or 3 cups per day (at least 150 grams of tea per month) had a 21% reduced risk of digestive system cancers and this was strongest for stomach esophageal and colorectal cancers. In addition, the researchers said “For all digestive system cancers combined, the risk was reduced by 27 percent among women who had been drinking tea regularly for at least 20 years. For colorectal cancer, risk was reduced by 29 percent among the long-term tea drinkers. These results suggest long-term cumulative exposure may be particularly important.”  Researchers found that regular tea drinkers were younger, had higher educational levels, exercised more, and consumed more fruit and vegetables and tried to adjust for these factors.

Colorectal Cancer in Women Linked to High Blood Sugar Levels

Wednesday, December 7th, 2011

A new study published in the online edition of the British Journal of Cancer concluded that elevated blood sugar levels are associated with an increase risk of colorectal cancer. Women in the National Institute of Health’s Women’s Health Initiative Study were evaluated for fasting blood sugar and insulin levels before the study as a baseline and several times thereafter over a 12 year period. There were 5,000 women in the study and at the end of the 12 years 81 had developed colorectal cancer. Researchers found that baseline elevated blood sugar levels were associated with an increase colorectal cancer risk. Women in the highest 1/3 of baseline blood sugar levels were almost twice as likely to have developed colorectal cancere as the women at the lowest 1/3 levels. Similar results were found when researchers evaluated repeated blood sugar levels over the time period. There was no association between insulin levels and colorectal risk in the study.

Combination of Diet and Lifestyle Influence Risk of Diabetes in Women

Wednesday, September 21st, 2011

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A new study published in the New England J. Medicine looked at the combined effects of diet and lifestyle in relation to risk of type 2 diabetes and concluded that the “majority of cases of type 2 diabetes could be prevented by the adoption of a healthier lifestyle.”

Between 1980 and 1996, 84,941 female nurses were followed who were free of diagnosed cardiovascular disease, diabetes, and cancer. Information was updated periodically on their diet and lifestyle. A low risk-group was defined with the following criteria: a body-mass index of less than 25, a diet high in cereal fiber and polyunsaturated fats and low in trans fats and glycemic load, engagement in moderate to vigorous physical activity for at least half an hour daily, no current smoking, and the consumption on average of at least half a drink of an alcoholic beverage daily.

During the study period 3300 new cases of type 2 diabetes were documented and researchers found that overweight or obesity was the single most important predictor of diabetes. However, after adjustment for the body-mass index, a lack of exercise, a poor diet, current smoking, and abstinence from alcohol use were all significantly associated with an increase risk of diabetes

Being Taller Increases Risk of Cancer for Women

Wednesday, August 17th, 2011

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Research published in online Lancet Oncology concluded that taller women are an at an increased risk of developing a wide range of cancers (breast, ovary, bowel. skin, leukemia, and melanoma). According to the researchers, there is an increase risk of cancer by 16% for each 10cm (4 inches) increase in height and this association holds for women from Asia, Europe, and North America.
The study evaluated 97,000 women who developed cancer over a 10 year period and were between 5 feet and 5 feet 9 inches tall. Researchers found the average incidence of cancer for women of average height was 850/100,000 women per year whereas at a height of 5 feet it was 750/100.000 and at 5 feet 9 inches it was 1000/100,000 per year. The incidence of cancer varied slightly by cancer type. For example, for every 4 inch increase in height the incidence of breast cancer rose by 17% but for uterine cancer it rose by 19%. Two factors identified that may account for the differences seen included hormonal changes, nutrition.