Deli turkey and other cold cuts can harbor Listeria monocytogenes, a bacteria that thrives at refrigerator temperatures. Listeria can cross the placenta and cause serious complications. Always heat deli turkey to steaming hot (165°F) before eating.
A "Use Caution" rating means this food is generally fine during pregnancy but comes with a specific factor worth managing — a daily limit, a preparation requirement, or a moderation guideline — rather than a reason to avoid it outright. These ratings reflect general guidance from the FDA, ACOG, CDC, and USDA. The goal of the "caution" label is to flag what to pay attention to, not to suggest the food is unsafe when that factor is properly managed.