The full answer
Tayyib means good, wholesome and pure.
Allah frequently connects Halal with Tayyib. Halal asks whether something is religiously permissible. Tayyib encourages us to think about quality, cleanliness, wholesomeness and responsible treatment.
The ideal food is therefore both Halal and Tayyib.
Answers in the Halal Knowledge Center reflect the standards followed by Halal Monitoring Services (HMS), which operates as part of the Shariah Board of America. HMS certifies only what it checks.