Both CBD and THC Cannabis Improved Insulin Resistance and Liver Disease in Obese Mice
In obese mice, both high-CBD and high-THC cannabis significantly reduced insulin resistance and liver disease severity while shifting inflammatory macrophages toward a less harmful profile.
Quick Facts
What This Study Found
Both high-CBD and high-THC cannabis significantly mitigated obesity-induced increases in insulin resistance (HOMA-IR) and metabolic dysfunction-associated steatohepatitis (MASH), while reducing proinflammatory M1-like macrophages in the liver.
Key Numbers
High CBD cannabis: ~4.2 mg/kg, 10.5% CBD content. High THC cannabis: ~7.3 mg/kg, 18.16% THC content. Both significantly reduced HOMA-IR and MASH scores compared to obese placebo (p values significant). Treatment was 3 times/week for 4 weeks.
How They Did This
Female C57BL/6 mice were randomized into four groups (n=15 each): lean, obese placebo, obese receiving high-CBD cannabis (~4.2 mg/kg), and obese receiving high-THC cannabis (~7.3 mg/kg) three times per week for 4 weeks after 16 weeks of high-fat diet.
Why This Research Matters
Obesity-related insulin resistance and fatty liver disease affect hundreds of millions of people worldwide. If cannabis-derived treatments can improve metabolic dysfunction and shift immune responses, they could offer a novel therapeutic approach to these conditions.
The Bigger Picture
The finding that both CBD and THC improved metabolic markers challenges the assumption that only CBD has therapeutic metabolic effects. The immune-modulating mechanism — shifting macrophage profiles — suggests cannabis may address the inflammatory root of metabolic disease, not just symptoms.
What This Study Doesn't Tell Us
Mouse study using female mice only — results may not translate to humans or male subjects. Cannabis was administered as whole plant (not isolated compounds). Short 4-week intervention after 16 weeks of established obesity.
Questions This Raises
- ?Would similar metabolic improvements occur in humans?
- ?Are the effects driven by specific cannabinoids or the entourage effect?
- ?Would longer treatment duration produce greater benefits?
- ?How do male mice respond?
Trust & Context
- Key Stat:
- Evidence Grade:
- Well-designed preclinical study with appropriate controls and randomization, but limited to female mice with a short intervention period.
- Study Age:
- Published 2025.
- Original Title:
- Cannabis improves metabolic dysfunction and macrophage signatures in obese mice.
- Published In:
- American journal of physiology. Cell physiology, 329(4), C1316-C1331 (2025)
- Authors:
- VanderVeen, Brandon N, Cardaci, Thomas D, Unger, Christian A, NeSmith, Mitchell M, Freeman, Jeffrey C, Bastian, Arianna V, Roark, Kasie, Upadhyay, Mansi, Levy, Andrew G, Bullard, Brooke M, McDonald, Sierra J, Velázquez, Kandy T, Enos, Reilly T, Kubinak, Jason L, Hofseth, Lorne J, Hebert, James R, Fan, Daping, Murphy, E Angela
- Database ID:
- RTHC-07853
Evidence Hierarchy
Frequently Asked Questions
Does cannabis help with weight loss or diabetes?
This mouse study showed improvements in insulin resistance and liver disease markers, but not necessarily weight loss. Human clinical trials are needed before any metabolic health claims can be made.
Was CBD or THC more effective?
Both high-CBD and high-THC cannabis showed significant improvements. The study did not report one being clearly superior to the other for metabolic outcomes.
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Cite This Study
https://rethinkthc.com/research/RTHC-07853APA
VanderVeen, Brandon N; Cardaci, Thomas D; Unger, Christian A; NeSmith, Mitchell M; Freeman, Jeffrey C; Bastian, Arianna V; Roark, Kasie; Upadhyay, Mansi; Levy, Andrew G; Bullard, Brooke M; McDonald, Sierra J; Velázquez, Kandy T; Enos, Reilly T; Kubinak, Jason L; Hofseth, Lorne J; Hebert, James R; Fan, Daping; Murphy, E Angela. (2025). Cannabis improves metabolic dysfunction and macrophage signatures in obese mice.. American journal of physiology. Cell physiology, 329(4), C1316-C1331. https://doi.org/10.1152/ajpcell.00503.2025
MLA
VanderVeen, Brandon N, et al. "Cannabis improves metabolic dysfunction and macrophage signatures in obese mice.." American journal of physiology. Cell physiology, 2025. https://doi.org/10.1152/ajpcell.00503.2025
RethinkTHC
RethinkTHC Research Database. "Cannabis improves metabolic dysfunction and macrophage signa..." RTHC-07853. Retrieved from https://rethinkthc.com/research/vanderveen-2025-cannabis-improves-metabolic-dysfunction
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.