What is Yellow Pitahaya and what does it taste like?

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That one farm visit sent me down a bit of a rabbit hole, because this fruit has a lot of names and a reputation online that I wanted to check for myself.

What yellow pitahaya actually is

Yellow pitahaya is also called yellow dragon fruit, 麒麟果 or 燕窝果 in Chinese, and its scientific name is Selenicereus megalanthus. Unlike the familiar pink-skinned dragon fruit with white or red flesh, this one has yellow, slightly spiny skin with white flesh inside. Wikipedia lists it as one of three main cultivated pitaya species, alongside the white-fleshed pink-skinned type and the red-skinned, red-fleshed type.

It's originally from northern South America, and most of the world's supply still comes from Ecuador, Colombia, Peru and Bolivia. A review in PMC notes that it makes up the majority of commercial pitahaya grown in Colombia, and that there's much less research on it than on the red varieties, simply because it's newer to large-scale cultivation.

Why it has to be grown so big

The farmer's comment about 370 grams lines up with how Ecuador actually grades its export fruit. According to Produce Report, Ecuadorian yellow pitahaya weighing more than 450 grams is graded top quality, with 300 to 350 grams as the lowest exportable grade. Fruit below that generally isn't considered worth selling commercially. So the 370-gram mark isn't a random number, it's close to the real cutoff the export trade uses.

China's own yellow pitahaya industry is still young. Large-scale plantings only began in Hainan around 2021, according to the same source, and the total area under cultivation was still only a bit over 1,300 hectares at that point, which is small next to the country's much larger red and white pitaya industry. That matches what I was told, that this fruit is still limited and seasonal in China, with a window that tends to open around January.

Does it taste that different from regular dragon fruit?

Yes, by most accounts it does. It's often described as noticeably sweeter than the common pink-skinned, white-fleshed dragon fruit, and sweeter again than the red-fleshed kind. TipBuzz describes the flavour as mild and sweet with floral notes, something like a cross between kiwifruit and cactus pear. Exotic Fruits UK agrees that yellow pitahaya tends to be sweeter and more flavourful than the red type.

Not everyone agrees it's dramatically different, though. Some people trying it for the first time have described it as tasting close to an ordinary white dragon fruit, just a little sweeter, with noticeably larger, crunchier seeds. That seed texture seems to be one of the more consistent things people notice, a bit more bite to them than the tiny soft seeds in a regular dragon fruit.

Is the "natural laxative" reputation real?

This fruit has gone properly viral online for this exact reason, and the short answer is yes, there's something to it, though it's not magic. The effect comes down to fibre, not to anything unique in the fruit itself. The Cleveland Clinic has been quoted as saying one cup of the fruit contains around seven grams of fibre, and dietitians interviewed by TODAY explained that if your usual diet is low in fibre, eating a whole yellow pitahaya in one sitting can genuinely trigger more frequent or larger bowel movements than you're used to.

It isn't a detox and it isn't cleansing anything in a medical sense. It's simply a fibre-dense fruit, and for anyone not used to that much fibre at once, the effect can feel dramatic. If you have a sensitive stomach, it's worth starting with less than a whole fruit rather than finishing one in one sitting the first time you try it.

Where you can actually buy it

Supply is patchy and prices vary a lot by country. In China, it tends to show up seasonally and sometimes reaches stores like Jaya Grocer in Malaysia when the timing and supply line up. Ecuadorian yellow pitahaya sold in the US and elsewhere, including through Trader Joe's in the US, is often priced at a premium compared with ordinary dragon fruit, and it's been spotted in Australian supermarkets too, though availability there also seems to come and go.

If you come across it at a market stall, it's usually sold per piece rather than by weight, and prices for a single fruit can run noticeably higher than a regular dragon fruit of the same size, which fits with it still being a specialty item in most markets outside South America.

What I'd tell you before you buy one

If you see a yellow pitahaya and the price makes you hesitate, that hesitation is pretty normal. It's not a flashy-looking fruit, and the spiky yellow skin with noticeably large seeds can look less appealing than a smooth red dragon fruit. Once it's cut open, most people who try it end up pleasantly surprised by the flavour. Just don't eat a whole one right before a long car trip if you've never had one before.