Monofloral Honeys as Functional Interactomes: Navigating Bioavailability, Gut Microbiota Transformation, and Food Integrity Pressures

While standard dietary frameworks and public health guidelines predominantly evaluate honey based on its high free-sugar content to regulate caloric intake, its comprehensive role as a complex and dense biological signaling matrix is often less characterized. This review integrates raw chemical profiling with physiological bioaccessibility to evaluate the effect of the floral source on the functional quality of monofloral honeys. Through a structured literature-based comparative synthesis, the specific enzymatic behaviors, gastrointestinal metabolic fates, and chemical biomarkers of four representative monofloral honeys—Manuka, Chestnut, Acacia, and Argan—were systematically mapped and contrasted. Honey bioactives undergo extensive metabolic transformation during gastrointestinal transit, actively communicating with the mucosal environment rather than acting as a static nutrient solution The synthesized literature highlights distinct botanical-specific mechanisms: Manuka honey matrices exhibit well-characterized topical antimicrobial kinetics, while data on Chestnut honey suggest a potential role in cellular redox homeostasis via the Nrf2 pathway and a highly specific, though preclinical, signaling axis through kynurenic acid–GPR35 interactions. Furthermore, in vitro profiles of Acacia honey support its potential to modulate digestive carbohydrate enzymes, providing a plausible framework for its lower postprandial glycemic responses. Conversely, Argan honey bioactivity remains restricted to preliminary baseline antioxidant screenings. We also note that sophisticated sugar adulteration and climate change create critical “phytochemical drift,” endangering the therapeutic consistency of honey. In summary, the identification of honey as a “functional interactome” offers a strong scientific foundation for evidence-based dietetics. The targeted use of verified medical-grade monofloral honeys must be supported by advanced authenticity testing, metabolomics, and in vivo pharmacokinetics in future clinical dietetic interventions.