All Posts tagged tomatoes

Tomatoes Fight Cholesterol

If you want to wage battle against cholesterol and other lipids (fat) that can contribute to vascular disease, then make tomatoes a big part of your diet. Scientists say this popular fruit contains a nutrient that can fight vascular disease such as stroke and arteriosclerosis.

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Tomatoes fight more than cholesterol and fat

Excessive levels of lipids, such as cholesterol and triglycerides in the bloodstream, a condition known as dyslipidemia, can lead to potentially deadly diseases such as arteriosclerosis, cirrhosis, and stroke. Scientists from Kyoto University and New Bio-industry Initiatives, Japan, report that a compound called 9-oxo-octadecadienoic extracted from tomatoes can boost oxidation of fatty acids and contribute to the regulation of lipid metabolism by the liver. These qualities indicate that 9-oxo-octadecadienoic acid can fight cholesterol and other lipids and therefore help prevent vascular diseases.

Vascular disease is a general term used to describe diseases that affect the blood vessels. The Vascular Disease Foundation offers information on nearly two dozen different conditions that fit this category, including abdominal aortic aneurysm, carotid artery disease, deep vein thrombosis, lymphedema, peripheral artery disease, and stroke.

Tomatoes are also valued for other health benefits. Much research has been dedicated to a potent antioxidant in tomatoes, lycopene, and its potential in the fight against various types of cancer, and especially prostate cancer. Tomatoes also contain excellent levels of other nutrients, including niacin, which helps lower cholesterol; and potassium, which reduces blood pressure and the risk of heart disease.

Dr. Teruo Kawada, who is from Kyoto University and who led the study, noted that “Finding a compound which helps the prevention of obesity-related chronic diseases in foodstuffs is a great advantage to tackling these diseases. It means that the tomato allows people to easily manage the onset of dyslipidemia through their daily diet.” To help the fight against cholesterol and other fats that contribute to vascular disease, enjoy more tomatoes.

SOURCES:
Kim YI et al. Molecular Nutrition & Food Research doi:10.1002/mnfr.201000264

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Tomatoes may reduce prostate cancer

Choosing to eat tomatoes not only reduces a man’s risk of developing prostate cancer, but also shrinks the existing tumors, claims a new Italian study. Researchers theorize that the secret may lie in lycopene, the powerful anti-oxidant that makes tomatoes red. Lycopene helps neutralize harmful free radicals that are implicated in various kinds of cancer, cardiovascular problems, macular degeneration and other age-related illnesses. However, the benefit was strongest for prostate cancer.

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In a bid to assess the prostate cancer-fighting properties of tomatoes, the researchers at the University of Naples conducted an experiment on rodents. For the purpose of the study, the researchers fed laboratory rats implanted with prostate cancer cells, with either a normal diet or that containing 10 percent tomato powder. The tomato powders were made from whole foods so the effects of eating the entire vegetable could be assessed as a nutritional supplement. The investigators noted that the animals fed on tomato powder exhibited slow progression of the disease and also had lower rates of prostate cancer. In contrast, those fed on a normal diet displayed no such benefits.

Joanna Owens, from Cancer Research Britain disagrees stated, “This study doesn’t provide enough evidence that tomatoes can reduce the risk of prostate cancer or prevent progression of the disease in humans. “Other risks such as age, family history and ethnicity are likely to play a much greater role than diet alone.” The study has been published in the journal ‘Cancer Prevention Research.’

 

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Tomato juice helps stop osteoporosis

Tomatoes are rich in cell-protecting antioxidants. Antioxidants are known cancer-fighters, such as prostate and breast cancer. And now lycopene – one of the antioxidants found in tomatoes – is being linked to reduce risk of osteoporosis. Osteoporosis is a degenerative bone disease, usually developing in old age, especially in post-menopausal women.

But the new study at the University of Toronto in Canada, says drinking tomato juice may help stave off osteoporosis. Published in the journal Osteoporosis International, scientists claim consuming 30mg of lycopene from tomato juice (about two glasses) is enough to help prevent osteoporosis. For the research, experts restricted a group of post-menopausal women, ages 50 to 60, from consuming anything containing lycopene for one month, then the study participants were split into four groups for four months. Groups were given either a 15mg lycopene supplement, a glass of tomato juice naturally containing 15mg of lycopene, a gourmet tomato juice with 35mg of lycopene, or a placebo.

After four months, results showed supplementing with lycopene raised serum lycopene, compared to the placebo group. The women consuming lycopene had significantly increased antioxidant capacity, decreased oxidative stress, and decreased bone markers for osteoporosis.

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