Cantaloupe

Cantaloupe is a mild liberator, and the variable is not the fruit but the clock: cut melon accumulates amines fast, and cantaloupe is the melon most often bought pre-cut in a tub. Whole and cut at home is a different food from a tub that has been open two days. The Swiss list this axis leans on puts melons other than watermelon at 0 of 3 — compatible, no symptoms expected at usual intake — with a question mark for thin evidence and the note “suspected occasional histamine liberator effects”. The grouping here rests on a suspicion its own source rates as mild.

Melon flesh is mostly water, so the concentration per gram stays modest — the serving size is what brings it up. Choosing fully ripe fruit helps: salicylates are more concentrated in underripe produce.

Cantaloupe carries its sugar mostly as free glucose and fructose rather than as sucrose, so there is little for sucrase to split. Sweetness and sucrose content are not the same measurement, and this fruit is the proof.

Cantaloupe is low at a slice and climbs steeply with the bowl. Melons are eaten in volume because they are mostly water, which is exactly the habit that turns a low-FODMAP fruit into a high-FODMAP serving. Watermelon is the cautionary example: same family, and high.

Cantaloupe is the netted, orange-fleshed melon, sold in Australia as rockmelon. Muir found fructans in melon at between 0.21 and 0.46 g per 100 g across four fruits, without saying which melon was analysed. Melon is eaten by the bowl rather than the wedge, and that is what decides the amount.

Cantaloupe is low on this axis because of sucrose first, then glucose and fructose in balance. Fructose only causes trouble when it outruns glucose - glucose is what carries it across the gut wall, so a balanced fruit is absorbed even when it tastes sweet.