Tomatoes with oil can best prevent cancer
Tomatoes contain more than 20 carotenoids, such as alpha carotene, beta carotene, lutein and zeaxanthin, and lycopene accounts for about 80%-90%.
It can be said that tomatoes are a natural warehouse for lycopene.
How can tomatoes be absorbed?
When the tomato is heated during processing or cooking, some of the double bonds in the lycopene molecule will change from trans to cis, making the lycopene molecules bend and easily absorbed by the body.
In addition, since lycopene is a fat-soluble nutrient, it is easy to make lycopene absorbed by cooking tomatoes or oiling on tomato products.
However, lycopene is exposed to light, heat and oxygen are easily decomposed, so continuous high-temperature heating should be avoided in both factory production and home cooking. Brakes retain more lycopene in products and substitutes, thus enhancing health care.
Comparison table of lycopene content in fruits, vegetables and tomatoes: In every 100 grams of lycopene-containing fruits and vegetables, the content of lycopene is: tomato 0.
2-20 mg of watermelon 2.
2 mg guava 5.
50 mg (pink) papaya 0.
3 mg grapefruit 0.
36 mg (pink) carrot 0.
78 mg pumpkin 0.
46 mg sweet potato 0.
11 mg apricot 0.
05 mg In 1994, Italian scholars compared 2,706 patients with various digestive tract cancers with 2,879 normal people and found that increasing the absorption of tomatoes has a protective effect on the digestive tract.
The proportion of people who do not eat tomatoes, who eat at least one tomato a day, can reduce the chance of developing digestive tract cancer by 50%.
Researchers at the Harvard School of Public Health in the United States conducted a four-year follow-up study of more than 46 fruits and vegetables consumed by 48,000 men. They found that at least 10 tomatoes per week, such as tomatoes, tomato sauce and pizza sauce, were eaten.The chance of developing prostate cancer is reduced by 34%.
Compared with the proportion of women with elevated lycopene concentrations in the body, women with high concentrations of lycopene in the body have less cervical cancer.
Half a century of research by scientists at home and abroad has shown that the reduction of lycopene concentration in the prostate is low, and it is unable to resist the erosion of royal radicals, causing fission and aging of the prostate and deformation.
Since the human body cannot synthesize lycopene itself, the demand for lycopene decreases with age, and it is difficult to obtain the absorption amount required by the human body from daily expenditure.
Therefore, supplementation with exogenous lycopene is the most effective means.
In 2000, the results of a survey of 1899 middle-aged men in the University of Chicago Medical School for nearly 30 years showed that the lower the amount of lycopene absorbed, the possibility of prostate disease.
Studies have confirmed that prostate disease is closely related to the level of lycopene in the human body.
Lycopene can break through the prostate absorption barrier and directly enter the gland to function.
In addition, a clinical trial conducted by the American Society for Cancer Research showed that lycopene has a decisive role in the treatment of prostate cancer, and those who take lycopene have improved five factors.
From the medical theory research, since lycopene can prevent the oxidation of low-density lipoprotein in blood, it can reduce the risk of atherosclerosis and coronary heart disease.
According to research reports from 10 European countries, eating tomato products containing at least 40 mg of lycopene per day (equivalent to drinking two cups of tomato juice) can significantly reduce the oxidation of low-density lipoprotein in the blood and coronary heart disease.danger.
Cataract and age-related macular degeneration are common eye diseases in the elderly.
According to Maris Parrman of the University of Wisconsin, the ratio of people with low lycopene in the blood to those with high concentrations of lycopene in the blood can reduce the chance of age-related macular degeneration by 50%.