Some products [for reasons having to do with national regulation of soy products] don't list soy protein or soy flour on their ingredients labels, yet they still contain soy. There are still many latent issues resolving how soy should be regulated, as well as its long-term effects on human health. Unilever Holland use soy bean oil in their peanut butter among other foods, which they state on their website concerning allergies contains no soy bean. People will have allergy reactions but the reaction may be put on peanuts rather than soy oil.