A recent federally funded study has challenged long-held stereotypes regarding cannabis use and weight gain, suggesting that whole extract cannabis may be associated with both weight loss and a reduced risk of diabetes in preclinical models. Researchers at the University of California, Riverside School of Medicine investigated a scientific paradox: if cannabinoids like THC can stimulate appetite, why do some studies indicate that cannabis users tend to have healthier weights and a lower risk of developing diabetes?
Exploring the Role of Cannabis in Metabolic Health
The study, published in the Journal of Physiology, involved feeding mice a high-fat, high-sugar “Western diet” to induce obesity. These obese rodents were then treated for 30 days with either a full-spectrum cannabis extract or isolated THC. The findings indicated that both THC and the cannabis extract significantly reduced body weight and visceral fat in the diet-induced obese mice. Notably, there were improvements in glucose homeostasis, with the cannabis extract showing particular efficacy in enhancing glucose clearance, a benefit not observed with isolated THC.
According to a report by Marijuana Moment, the researchers observed that fat cells in healthy organisms release signalling molecules crucial for regulating insulin secretion from the pancreas. In contrast, individuals with obesity and type-2 diabetes often experience disruptions in this communication. The cannabis extract proved more effective than isolated THC in helping the mice regulate glucose, normalising glucose clearance to levels seen in lean mice.
The Entourage Effect and Future Research
The enhanced metabolic effects observed with the full-spectrum cannabis extract compared to isolated THC suggest a potential “entourage effect,” where multiple cannabinoids and other plant compounds may interact synergistically to produce greater therapeutic benefits. The study authors noted, “The enhanced metabolic effects observed with cannabis extract relative to THC alone in the present study may therefore reflect combinatorial or synergistic interactions among multiple cannabinoids.”
Nicholas DiPatrizio, professor of biomedical sciences at UCR School of Medicine and lead author of the study, emphasised that the data suggests isolated THC alone may not be solely responsible for the metabolic benefits associated with cannabis use. He stated that “Other compounds in the plant appear to play a critical role,” highlighting the importance of investigating the contribution of individual phytocannabinoids in future studies.
Implications for Cannabis and Weight Management
While this preclinical research in mice should not be interpreted as a direct recommendation for human use of cannabis for weight loss or diabetes prevention, the findings could inform the development of future therapeutics. DiPatrizio suggested that non-intoxicating phytocannabinoids from the whole plant might eventually be developed into medical interventions. He encouraged clinicians, researchers, and policymakers to monitor this area closely, stressing the need for evidence-based approaches to fully understand both the potential benefits and risks of cannabis and its components.
This study, supported by grant funding from the National Institutes of Health (NIH) and the University of California’s Tobacco-Related Disease Research Program, adds to a growing body of research exploring the relationship between cannabis and body weight. Previous studies have also indicated potential associations:
- A 2023 study found that a combined product containing THCV and CBD was associated with statistically significant weight loss, a slimmer waistline, lower blood pressure, and decreased cholesterol.
- Separate research in 2024 suggested that regular cannabis users were less likely to be obese than non-users, with a dose-response relationship observed between cannabis use and lower Body Mass Index (BMI).
- Additional research in 2020 indicated that older adult cannabis users had lower BMI at the start of an exercise intervention and engaged in more weekly exercise.
These findings, building on earlier coverage of obesity and metabolic health, underscore the complex and evolving understanding of cannabis and weight management. Further human clinical trials are necessary to confirm these preclinical observations and explore the precise mechanisms involved.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Hemp Gazette does not provide medical recommendations, diagnoses, or treatment plans. Always consult a qualified healthcare practitioner before making any decisions regarding your health or any medical condition. Statements concerning the therapeutic uses of hemp, cannabis, or cannabinoid-derived products have not been evaluated by Australia’s Therapeutic Goods Administration (TGA). Medicinal cannabis products in Australia are accessed via prescription pathways under TGA regulation.
