Rare sugars D-allulose and D-tagatose induce FGF21, curbing sugar/alcohol preference and preventing obesity/alcohol dependence in mice.
Background
Globally, obesity and alcoholism pose significant health challenges, largely driven by maladaptive ingestive behaviors. Current interventions often fall short in addressing the underlying mechanisms of these specific appetites. Research indicates that both simple sugars and alcohol elevate plasma fibroblast growth factor 21 (FGF21), a hormone known to activate oxytocin (OXT) neurons in the paraventricular nucleus of the hypothalamus (PVH). This FGF21-PVHOXT pathway is crucial for suppressing specific appetites for sugar and alcohol, presenting a promising target for novel therapeutic and preventive strategies.
Study Design
Researchers investigated the effects of oral administration of D-allulose and D-tagatose, two generally recognized as safe rare sugars, in mouse models. The study aimed to assess their capacity to induce FGF21 and subsequently influence ingestive behaviors related to sugar and alcohol. Mice were administered these sugars orally, and their impact on plasma FGF21 levels, preference for simple sugars and alcohol, and the development of diet-induced obesity and alcohol dependence was monitored. The study also explored the underlying molecular mechanisms, specifically focusing on ATF4-dependent FGF21 induction and the FGF21-PVHOXT feedback system.
Results
Oral administration of D-allulose and D-tagatose consistently elevated plasma FGF21 levels to concentrations sufficient to modulate ingestive behaviors. These elevated FGF21 levels significantly reduced the preference for simple sugars and alcohol in mice, notably without altering the palatability of the substances. Furthermore, the rare sugars demonstrated a preventive effect against the development of diet-induced obesity and alcohol dependence in the mouse models. Mechanistically, these beneficial effects were attributed to an activating transcription factor 4 (ATF4)-dependent induction of FGF21. This induction subsequently activated the FGF21-PVHOXT negative feedback system, which is critical for appetite suppression. The findings highlight a novel pathway where specific dietary components can leverage endogenous hormonal systems to regulate maladaptive ingestive behaviors. > The study definitively showed that D-allulose and D-tagatose prevent the development of diet-induced obesity and alcohol dependence in mice by activating the FGF21-PVHOXT pathway.
Key Findings
- Oral D-allulose and D-tagatose elevate plasma
FGF21levels in mice. - Rare sugars reduce preference for simple sugars and alcohol without altering palatability.
- D-allulose and D-tagatose prevent diet-induced obesity in mouse models.
- Rare sugars prevent the development of alcohol dependence in mice.
- Effects involve
ATF4-dependentFGF21induction andFGF21-PVHOXTnegative feedback activation.
Why It Matters
This research suggests a novel, food-based strategy for managing obesity and alcoholism by leveraging the body's natural FGF21 pathway. For biohackers and individuals seeking non-pharmacological interventions, incorporating rare sugars like D-allulose and D-tagatose into the diet could offer a simple, safe method to curb cravings for sugar and alcohol. While this is a preclinical mouse study, the 'generally recognized as safe' (GRAS) status of these sugars means clinical translation could be relatively straightforward, potentially leading to functional food products or dietary supplements. This approach could complement existing strategies, offering a proactive measure to prevent the development of these chronic conditions by modulating specific appetites without affecting overall food enjoyment.
d-allulose
d-tagatose
fgf21
obesity
alcoholism
appetite-suppression