A Functional Food Supplement Enriched with Vegetable Proteins and Probiotics: A Hyperproteic and Probiotic-Formulated Product

Functional foods enriched with probiotics can help maintain health and enhance mental and cognitive function. This research focused on developing and characterizing a high-protein dietary supplement containing a blend of plant proteins and probiotic cells (Lactobacillus reuteri LRE 02 ID 1774). An additional systematic review aimed to showcase the current state of the art of the research topic and complement the study’s findings. The supplement demonstrated high nutritional quality, particularly in protein content and amino acid profile, providing all essential amino acids and branched-chain amino acids (BCAAs). It also contains omega-3 fatty acids (150 mg 100 g−1), omega-6 (1420 mg 100 g−1), and omega-9 (1180 mg 100 g−1, including 20 mg 100 g−1 of cis-11-eicosenoic acid). Additionally, the supplement serves as a source of dietary fiber and probiotics (109 CFUg−1) and exhibits moderate antioxidant activity. It is considered innovative due to its hypoallergenic properties, low concentration of anti-nutritional factors, good digestibility, and the fact that it is gluten- and lactose-free. Furthermore, it contains Lactobacillus reuteri, a probiotic with potential immunomodulatory and neurocognitive benefits.