Eating a varied diet and Omnivorous

Omnivorous and eating a varied diet are semantically related In some cases you can replace term "Omnivorous" with "Eating a varied diet", this terms are similar.

Omnivorous adjective - Feeding on both plants and animals.

Eating a varied diet and omnivorous are semantically related in eating a mixed diet topic. You can use "Eating a varied diet" instead an adjective "Omnivorous".