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Does roasting remove lectins in peanut butter

I’ve read that peanut butter causes cancer and roasting doesn’t remove lectins

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Answer

Lectin Quantitation in Peanut and Soybean Seeds - E. M. Ahmed (1986)

“Lectins were inactivated by heat; moist heat was more effective than dry heat. Roasted peanuts seeds (177 C for 30 min) and boiled peanuts (5% saline solution for 1 hr) were devoid of active lectin.”

Table 4 from that paper shows that commercially available products have substantially reduced lectin but not zero.

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There are various papers showing an association between peanut lectin (and aflatoxin) and cancer, but there are also papers suggesting reduced risk of cancers from eating peanuts…

Association of Total Nut, Tree Nut, Peanut, and Peanut Butter Consumption with Cancer Incidence and Mortality: A Comprehensive Systematic Review and Dose-Response Meta-Analysis of Observational Studies (2021)

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