Similar to the Paleo diet, whether breakfast sausage is Whole30 compliant largely depends on the ingredients used. Whole30 rules exclude sugars, grains, preservatives, dairy, alcohol, and legumes. Many store-bought breakfast sausages contain sugars or flavor enhancers that may not conform to Whole30 standards. However, there are brands available that make Whole30-compliant sausages, and homemade recipes can also be a straightforward way to ensure your breakfast sausage complies with the Whole30 rules. Always be sure to check food labels or ingredient lists before purchasing if you're unsure.