Regarding watermelon and lycopene?
Hello, I have a few questions to ask you.
1.
Is it true that watermelon contains more lycopene than tomatoes, as mentioned in #32884? 2.
Isn't lycopene supposed to be released through heating? If watermelon indeed contains a high amount of lycopene but is not heated, how can it be absorbed by the human body? Please help clarify my doubts in #24135.
Thank you in advance.
- Yu Ba
lili, 60~69 year old female. Ask Date: 2008/03/07
Dr. Hu Yuqing reply Nutrition
Dear Dad: I'm sorry, I don't understand.
What do #32884 and #24135 mean? I'm not clear about the lycopene content in food; it seems that currently, it is self-reported by the manufacturers.
I inquired with the Food Industry Research and Development Institute (http://www.firdi.org.tw/) about the analysis of lycopene, and both raw tomatoes and watermelon should contain lycopene, but lycopene needs to be heat-activated (I'm not entirely sure about the terminology).
It's also difficult to achieve the benefits of lycopene by eating raw tomatoes.
Wishing you good health.
Nutritionist Hu Yu-Ching responded on March 10, 1997, Monday.
Reply Date: 2008/03/07
More Info
Lycopene is a carotenoid pigment that gives fruits and vegetables their red and pink colors, and it is most commonly associated with tomatoes. However, it is also found in other fruits, including watermelon. The question of whether watermelon contains more lycopene than tomatoes is an interesting one, and the answer can vary based on several factors, including the specific variety of the fruit and how they are prepared.
1. Lycopene Content in Watermelon vs. Tomatoes: Generally, tomatoes are known to be one of the richest sources of lycopene. However, certain varieties of watermelon, particularly the red-fleshed types, can also contain significant amounts of lycopene. Some studies suggest that the lycopene content in watermelon can be comparable to that of tomatoes, especially when considering the bioavailability of lycopene. Bioavailability refers to the proportion of a nutrient that is absorbed and utilized by the body. While tomatoes may have a higher total lycopene content, the lycopene in watermelon can be more easily absorbed due to its water content and the presence of other nutrients that aid in absorption.
2. Absorption of Lycopene: It is true that cooking tomatoes can increase the bioavailability of lycopene. The heat breaks down the cell walls of the tomatoes, making the lycopene more accessible. However, watermelon is typically consumed raw, and its lycopene is already in a form that is relatively easy for the body to absorb. The presence of dietary fats can also enhance the absorption of lycopene. Therefore, consuming watermelon with a small amount of healthy fat (like nuts or avocado) can potentially increase the amount of lycopene that your body absorbs.
In summary, while tomatoes are traditionally recognized as the primary source of lycopene, watermelon can also be a valuable source, particularly for those who enjoy this refreshing fruit. The key takeaway is that both fruits can contribute to your lycopene intake, and incorporating a variety of fruits and vegetables into your diet is the best approach to ensure you receive a wide range of nutrients.
Additionally, lycopene has been studied for its potential health benefits, including its antioxidant properties, which may help reduce the risk of certain chronic diseases, including some types of cancer and heart disease. Regular consumption of lycopene-rich foods, whether from tomatoes, watermelon, or other sources, can be part of a healthy diet.
If you are looking to increase your lycopene intake, consider incorporating both tomatoes and watermelon into your meals. You can enjoy tomatoes in sauces, salads, and cooked dishes, while watermelon can be a refreshing snack or dessert. Remember, a balanced diet rich in a variety of fruits and vegetables is key to overall health.
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