In autumn, how can you not eat grapefruit?
Red heart, white heart, sweet and sour, tender and juicy meat. Take a bite and the pieces of flesh burst into juice one by one in your mouth.
What a "cool" word!
But have you ever had such a tangle?
Buy red or white grapefruit? (After all, the price difference is nearly double.) Let's make it clear today at once.
First, is the nutrition of red heart grapefruit better than that of white heart grapefruit?
Indeed it is.
Red grapefruit is red because its flesh is rich in lycopene and carotene[3].
Of these 2 benefits, White Heart Grapefruit does not. White grapefruit has almost no lycopene in its flesh and very little carotene [4].
Studies have found that lycopene and carotene have antioxidant effects, improve immunity, and reduce the risk of cardiovascular disease[1].
In addition, red-hearted grapefruit has a higher vitamin C content than white-hearted grapefruit [2,3].
Ps: The grapefruit (also called grapefruit) in the table also has an orange-red flesh, but is smaller and is a relatively regular round.
It is the product of an accidental hybridization of grapefruit and sweet orange, and is superior to red grapefruit in terms of lycopene and β-carotene[5].
2. Spend twice as much money on red grapefruit?
Not worth the price.
Lycopene is also found in tomatoes, watermelons, and guavas, and carotene is also found in many orange fruits and vegetables such as mangoes, pineapples, oranges, pumpkins, and carrots.
Not necessarily for these 2 kinds of nutrition, we have to eat red heart grapefruit.
In fact, red heart grapefruit and white heart grapefruit are very good fruits.
They all have three benefits:
1. High vitamin C content.
2. Calories and sugar content are not high.
3. Rich in pectin and other dietary fibers, there is a strong sense of satiety.
It is especially suitable for people who have three highs and need to lose fat and lose weight.
Choosing fruit, in fact, is very important to be delicious. Eat whatever grapefruit you like!
Ps: Another reason why red heart grapefruit is more expensive is the new variety.
In 1998, researchers found a single red flesh mutation in a village in Pinghe County, Fujian Province, which is the ancestor of most of today's red-hearted grapefruits.
Later, after years of grafting and cultivation, there is now the red heart grapefruit.
3. How to choose a delicious grapefruit?
A delicious grapefruit requires plenty of moisture, good ripeness and high freshness.
When buying grapefruit, weigh a few more grapefruit, the size is similar, priority is given to choose a heavier one;
The round head is flatter, the tip is sharper, the overall is fuller, the maturity is better, and the taste is better;
Gently squeeze the grapefruit, which is hard and firm, indicating high freshness and may have thin skin.
4. Can't grapefruit be eaten with medicine?
Be careful!
Previous studies have shown that grapefruit juice interacts with hundreds of drugs, and taking it with the drug not only guarantees efficacy, but also can have side effects.
Although yuzu juice is mentioned, for the sake of caution, try not to eat yuzu when taking related drugs. It is best to consult a doctor before taking the medicine.
Please refer to this table [5] for details.
What grapefruit are you eating this fall?
Feel free to let me know in the comments section
bibliography
Yang Yuexin,Ge Keyou. Chinese Nutrition Science Encyclopedia 2nd Edition (Volume 1)[M].People's Medical Publishing House, 2019.109/116/184/199
Yang Yuexin. Chinese Food Ingredient List Standard Edition, 6th Edition, Volume 2[M].Beijing:Peking University Medical Press,2019.
Huang Xinzhong, Lu Xiumin, Jin Guang, et al. Research progress on germline etymology of red meat grapefruit[C]. Proceedings of the 5th Annual Conference of Fujian Association for Science and Technology to Improve the Comprehensive Agricultural Production Capacity of the Economic Zone on the West Bank of the Taiwan Strait. 2005.
Lu Xinkun, Lin Qihua, Lu Xiumin, et al. Comparison of carotenoid components and contents of different grapefruit pulp colors[J]. Fujian Journal of Agricultural Sciences,2012,27(7):723-727.]
[5]https://www.fda.gov/consumers/consumer-updates/grapefruit-juice-and-some-drugs-dont-mix
[6] Liu Y Q , Heying E , Tanumihardjo S A . History, Global Distribution, and Nutritional Importance of Citrus Fruits[J]. Comprehensive Reviews in Food Science & Food Safety, 2012, 11(6):530-545.