Many white-collar women are now troubled by constipation, and a major reason is that their diet is too refined, leading to insufficient fiber intake. This refinement is reflected not only in grains but also in beverages, and it is particularly inadvisable to replace whole fruits and vegetables with fruit and vegetable juices.
Does one glass of orange juice a day increase the risk of skin cancer?
A study by Brown University in the UK, published in the Journal of Clinical Oncology, shows that drinking one glass of orange juice a day increases the risk of skin cancer by 25%; people who eat a whole grapefruit three times a week have a cancer risk as high as 41%.
The research leader and their team analyzed health data from over 63,000 female nurses and 41,000 men between 1980 and 2010. Every 2-4 years, they conducted detailed questionnaire surveys with the respondents, analyzing their diet and lifestyle habits, including questions on how often they consumed grapefruit, oranges, grapefruit juice, or orange juice. During the follow-up period, 1840 people were diagnosed with melanoma.
The analysis showed that compared to those who ate citrus fruits less than twice a week, those who ate citrus fruits 3-4 times a week had a 10% increased risk of melanoma; people who consumed more than 1.5 times the average daily amount of citrus fruits had a 36% higher risk of melanoma.
What are the harms of drinking too much juice?
1. Hinders nerve activity
Excessive sugar intake can also worsen a child's mood. This is because sucrose is converted into glucose in the body, and the oxidative breakdown of glucose requires enzymes containing vitamin B1. If excessive sugar is consumed, a large amount of vitamin B1 will be depleted, ultimately affecting the oxidation of glucose and producing more incomplete oxidative intermediates, such as pyruvate and lactic acid. These substances can hinder the activity of the human central nervous system, causing children to exhibit symptoms such as lack of concentration, irritability, nervousness, and muscle stiffness.
2. Can lead to copper-deficiency anemia
Juice has a high sugar content; excessive consumption not only corrodes teeth but also disrupts digestive system function. Special attention should be paid to the fact that juice contains several types of sugars that young children cannot absorb, which can easily cause diarrhea in children. Furthermore, the fructose in juice can hinder the body's absorption of copper. A lack of copper affects the production of hemoglobin, leading to anemia.
3. More likely to increase fat accumulation
Juice contains a large amount of fructose. Experts point out that consuming large amounts of fructose increases the risk of heart disease and type 2 diabetes, because fructose is more easily converted into fat by the liver than glucose.
How to drink juice healthily?
Juice should not be heated. During certain days of the month, many women find it enjoyable to drink heated juice. What they don't realize is that the most beneficial component for beauty in juice is vitamin C, but vitamin C is destroyed by heat and loses its good beautifying effect.
Don't mix juice with milk. This seems to be a common saying. Juice contains fruit acid, which will react with the protein in milk, making the nutrients from both sources unabsorbable. Therefore, it is best to drink juice and milk separately.
The best time to drink juice is in the morning. For busy white-collar workers, the most chaotic time of the day is the morning, so many of them have a rushed or even non-existent breakfast. This leads to a significant vitamin deficiency in the body at this time. After finishing the busy work in the morning, drinking a glass of juice replenishes both energy and vitamins.