Buffet food can be consumed during pregnancy but requires caution. Temperature control issues at buffets increase bacterial risk. The key guidance from FDA: Choose hot foods that are visibly steaming; avoid cold items sitting out. Potential concerns include: Listeria, Salmonella from temperature abuse, Cross-contamination. These risks are manageable when you follow the recommended limits.
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.