Every time I buy dragon fruit, I get tangled in my heart.
The two look basically the same, just a red heart and a white heart, why can the price be doubled?
Is expensive dragon fruit worth buying? (Besides, every time I eat it, the stool is horrible…)
After reading this, you will no longer have to worry about it.
The difference is with or without the blessing of betalain.
Simply put:Red heart dragon fruit is rich in betalain, while white heart dragon fruit has almost none.
Image source: Zhanku Hailuo
Beta erythromycin, a plant pigment, is naturally non-toxic. There are also some studies that it has anti-inflammatory, immune-boosting, blood-lipid-lowering effects.
It looks like you can earn money by eating red dragon fruit?
What a pity! Betaene is not easily absorbed and utilized by the human body, and most of it is excreted with stool or urine. Besides, I don’t eat a lot every day, except to startle you when you go to the toilet, it has almost no effect.
(Source: soogif)
The sugar content of red heart dragon fruit (about 9.61% of total sugar) is higher than that of white heart dragon fruit (about 8.83% of total sugar), and it is also slightly higher in calories[1].
In terms of taste, the sugar-to-acid ratio of red pitaya is also slightly higher than that of white pitaya[2], so it tastes more sweet and sour, with a stronger taste.
(Source: soogif)
In addition, the antioxidant substances such as polyphenols and flavonoids in red pitaya are also higher than those in white pitaya[1].
As for other nutrients, there is little difference.
Overall, dragon fruit is indeed more nutritious, but these advantages are not so obvious, and it is not worth the double the price.
As for which one to buy, it depends on your preferences.
(Note: The data of different origins are quite different, the above table is for two kinds of dragon fruits of the same origin)
It’s true, and it really works.
What works is the small black seeds inside. These small black seeds are seeds and the main source of dietary fiber in dragon fruit, which can promote intestinal movement very well.
There is little difference between red and white hearts in this regard[2].
If you just want to poop more smoothly and eat dragon fruit, instead of worrying about the color, it is better to choose a bigger one.
(Source: soogif)
Although dragon fruit can make people have a good bowel movement, it does not mean that eating it can lose weight.
Dragon fruit is not sweet, but it is not low in sugar, especially the red dragon fruit.
Similar to it, but alsoThere are hawthorn, passion fruit, oranges, and be careful of the calories you eat when eating these fruits.
“Dietary Guidelines for Chinese Residents” recommends eating 4-7 taels of fruit every day, and it is best to eat them in different ways. Don’t be greedy for the “laxative” ability of dragon fruit, just keep eating it.
Image source: Zhanku Hailuo
Do you often eat dragon fruit with red hearts or white hearts?
How about the price of dragon fruit in your place?
Let us know in the comments!
Contributing Author: Zheng Feifei |Registered Dietitian
Reviewer: Yun Wuxin |PhD in Food Engineering, Department of Agricultural and Biological Engineering, Purdue University, USA
References:
[1].Cai Yongqiang,Xiang Qingyun,Chen Jialong,et al.Analysis of nutritional components of dragon fruit[J]. Economic Forest Research,2008,26(4):53-56.
[2]. Deng Aini, Ye Haihui, He Xiufen, et al. Analysis of nutrient content in Hainan red and white dragon fruit [J]. Preservation and Processing, 2020,20(3):177 -182.
[3]. Zhou Xiaoli, Mo Rui, Xiao Na, et al. Comparative analysis of conventional nutritional components and antioxidant activities of red and white dragon fruit [J]. Food Industry Science and Technology, 2018, 39 (21):248-251,319.
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