Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs
Cannabidiol (CBD) containing dog food and treats are widely commercially available, mirroring the growing popularity of CBD as a supplement for humans. Despite this, experimental evidence of the safety and efficacy of long-term oral exposure in dogs is lacking. The purpose of this study was to addre...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-09-01
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| Series: | Frontiers in Veterinary Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2022.977457/full |
| _version_ | 1811183684185751552 |
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| author | Sophie Bradley Scott Young Anne Marie Bakke Lucy Holcombe Daniel Waller Alysia Hunt Kathleen Pinfold Phillip Watson Darren W. Logan |
| author_facet | Sophie Bradley Scott Young Anne Marie Bakke Lucy Holcombe Daniel Waller Alysia Hunt Kathleen Pinfold Phillip Watson Darren W. Logan |
| author_sort | Sophie Bradley |
| collection | DOAJ |
| description | Cannabidiol (CBD) containing dog food and treats are widely commercially available, mirroring the growing popularity of CBD as a supplement for humans. Despite this, experimental evidence of the safety and efficacy of long-term oral exposure in dogs is lacking. The purpose of this study was to address the gap in knowledge around the longer-term suitability and tolerance of a broad-spectrum CBD (THC-free) distillate in clinically healthy dogs. The study was a randomized, placebo-controlled, and blinded study where one group of twenty dogs received daily CBD capsules at a dose of 4 mg/kg of body weight (BW) for a period of 6 months. The control group of twenty dogs received placebo capsules. A comprehensive suite of physiological health measures was performed throughout the study at baseline, and after 2, 4, 10, 18, and 26 weeks of exposure, followed by 4 weeks of washout. CBD concentrations were measured at the same cadence in plasma, feces and urine. Health measures included biochemistry, hematology, urinalysis, in addition to fortnightly veterinary examinations, twice daily well-being observations, and a daily quality-of-life survey. Biochemistry and hematology showed no clinically significant alterations apart from a transient elevation in alkaline phosphatase (ALP) in just over half of the dogs receiving CBD. This elevation was observed in the absence of concurrent elevations of other liver parameters, and without any adverse effects on health and wellbeing. Furthermore, bone alkaline phosphatase (BALP) was simultaneously elevated with a significant, strong (r > 0.9) positive correlation between the two measures, suggesting that the elevation of total ALP was at least partly due to the bone-derived isoform. This study provides evidence that a once-daily oral dose of 4 mg CBD/kg BW is well tolerated in clinically healthy dogs for a duration of 6-months. |
| first_indexed | 2024-04-11T09:50:54Z |
| format | Article |
| id | doaj.art-ad066c1b703b458297a9e4a3ac9de576 |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-04-11T09:50:54Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Veterinary Science |
| spelling | doaj.art-ad066c1b703b458297a9e4a3ac9de5762022-12-22T04:30:48ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692022-09-01910.3389/fvets.2022.977457977457Long-term daily feeding of cannabidiol is well-tolerated by healthy dogsSophie BradleyScott YoungAnne Marie BakkeLucy HolcombeDaniel WallerAlysia HuntKathleen PinfoldPhillip WatsonDarren W. LoganCannabidiol (CBD) containing dog food and treats are widely commercially available, mirroring the growing popularity of CBD as a supplement for humans. Despite this, experimental evidence of the safety and efficacy of long-term oral exposure in dogs is lacking. The purpose of this study was to address the gap in knowledge around the longer-term suitability and tolerance of a broad-spectrum CBD (THC-free) distillate in clinically healthy dogs. The study was a randomized, placebo-controlled, and blinded study where one group of twenty dogs received daily CBD capsules at a dose of 4 mg/kg of body weight (BW) for a period of 6 months. The control group of twenty dogs received placebo capsules. A comprehensive suite of physiological health measures was performed throughout the study at baseline, and after 2, 4, 10, 18, and 26 weeks of exposure, followed by 4 weeks of washout. CBD concentrations were measured at the same cadence in plasma, feces and urine. Health measures included biochemistry, hematology, urinalysis, in addition to fortnightly veterinary examinations, twice daily well-being observations, and a daily quality-of-life survey. Biochemistry and hematology showed no clinically significant alterations apart from a transient elevation in alkaline phosphatase (ALP) in just over half of the dogs receiving CBD. This elevation was observed in the absence of concurrent elevations of other liver parameters, and without any adverse effects on health and wellbeing. Furthermore, bone alkaline phosphatase (BALP) was simultaneously elevated with a significant, strong (r > 0.9) positive correlation between the two measures, suggesting that the elevation of total ALP was at least partly due to the bone-derived isoform. This study provides evidence that a once-daily oral dose of 4 mg CBD/kg BW is well tolerated in clinically healthy dogs for a duration of 6-months.https://www.frontiersin.org/articles/10.3389/fvets.2022.977457/fullfood safetypet food ingredientscannabinoidscaninedogCBD |
| spellingShingle | Sophie Bradley Scott Young Anne Marie Bakke Lucy Holcombe Daniel Waller Alysia Hunt Kathleen Pinfold Phillip Watson Darren W. Logan Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs Frontiers in Veterinary Science food safety pet food ingredients cannabinoids canine dog CBD |
| title | Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs |
| title_full | Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs |
| title_fullStr | Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs |
| title_full_unstemmed | Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs |
| title_short | Long-term daily feeding of cannabidiol is well-tolerated by healthy dogs |
| title_sort | long term daily feeding of cannabidiol is well tolerated by healthy dogs |
| topic | food safety pet food ingredients cannabinoids canine dog CBD |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2022.977457/full |
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