The study, published in the journal Clinical Endocrinology & Metabolism showed that women who were randomly assigned to eat tomatoes and tomato products of food ( containing 25 milligrams of lycopene per day ), increased levels of hormones that regulate metabolism or adiponectin.
"The benefits of eating lots of tomatoes and tomato -based products, even in the short term, is a testament to our findings," said researcher Adana Llanos, assistant professor of epidemiology at Rutgers University.
He continued, " Eating fruits and vegetables, which are rich in essential nutrients, vitamins, minerals, and phytochemicals such as lycopene, showed significant benefit. "
This study also shows an increase in adiponectin levels may help prevent breast cancer. It is associated with obesity were identified as risk factors for breast cancer.
"Based on these data, we believe that regular consumption of fruit and vegetable servings recommended appropriate can be a form of breast cancer prevention in people who are potentially affected by cancer," said Llanos.
The study involved 70 postmenopausal women at high risk of developing breast cancer. They have a body mass index ( BMI ) of 25 to 42, which indicates overweight and obesity. Respondents also had a history of breast cancer in her family.
In the first two weeks, these women did not eat tomatoes or soy, and other products based on both of these vegetables. After that, they started eating tomatoes for 10 weeks. Two weeks later they again do not eat tomatoes or soy and its products. Then, after they eat 40 grams of soy protein for 10 weeks.
After 10 weeks on a diet of tomatoes, researchers found that adiponectin levels increased by nine percent. The increase in this hormone higher in women who have a lower body mass index. Other evidence suggests, adipocentin levels tended to decrease after the female respondents eating soy products for 10 weeks.
" It is not known clearly about the decrease in adiponectin after soy intervention in this study. Further research is needed to clarify this matter, " wrote the researchers.
The researchers also noted that although this study focused on the benefits of lycopene in tomatoes, it is possible that other phytochemicals in tomatoes also have many benefits. To prove it, there needs to be further research on the benefits of the tomato.
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