Perceptions of Insects and Algae as Alternative Protein Sources

Abstract

Algae and insects are commercially available food products that can be alternative protein sources to meat, fish, and eggs, even if consumers find them less appealing. This study analyzed the opinions of a non-random sample of Portuguese adults, using an online, self-fulfillment questionnaire. We collected valid questionnaires from 188 participants. Previous intake history was low for insect-based products (11%) but not for algae (61%). Protein bars with insect flour or algae were considered the most appealing products based on alternative protein sources. Consumer education is needed to promote insects as alternative protein sources.

Keywords

• algae
• alternative protein sources
• insects
• nutrition