Some flavorings have raised other types of health flags, like diacetyl, the artificial buttery flavoring in microwave popcorn.

有些打着健康旗号的，如丁二酮、人造黄油用于微波炉爆米花。

Some have been found to contain diacetyl, a chemical that is known to give butter its" buttery" taste.

其中些被发现含有双乙酰，是种黄油具有“黄油”味道的化学物质。

Some users might see warnings or labels that say our product is diacetyl free and that might be true.

有些用户能会看到警告或标签说，我们的产是不含双乙酰的，这能是真的。