http://www.msnbc.msn.com/id/12302075/from/RSS/ Researchers for this new study followed more than 1,500 women, beginning on average two years after the women finished treatment for early-stage breast cancer. Initial tests confirmed that women with higher levels of carotenoids in their blood, which are markers of carotenoids in the diet, ate more vegetables and fruits.
After about seven years, women who began with the highest levels of carotenoids in their blood showed 43 percent less risk of developing breast cancer again when compared to women with the lowest carotenoid levels. Since dietary supplements can also provide carotenoids, researchers conducted a separate analysis with women whose carotenoids came only from food.
Part of the problem with past studies may be reliance upon self-reported vegetable and fruit intakes. People can inaccurately report what or how much they eat. The database on the content of carotenoids and other phytochemicals in foods is also incomplete. A more reliable method, which this new study uses, is measuring blood levels of carotenoids. Researchers are better able to analyze the impact of these substances because they are definitely present in the body.
Fruits and vegetables aren’t the only place to look for protection from the return of breast cancer. In this study, statistical analysis controlled for the impact of weight. Yet other research suggests that three factors may lower the risk of breast cancer recurrence: a healthy weight, little or no weight gain after diagnosis of your primary breast cancer and physical activity.