Guava nectar

Fresh guava sits in a mild-to-moderate range for histamine, but nectars are a more processed product.

• Concentration and additives — commercial nectars often contain added sugars or preservatives, any of which may increase the overall load beyond what the fruit alone would cause; checking the ingredient list is always worth doing

• Compared to fresh fruit — fresh guava in small amounts is generally considered easier to tolerate than its concentrated, shelf-stable nectar form

Checking the ingredient list for preservatives can help you make a more informed choice.