Calming Dog Treats: Scientific Study on Anxiety Relief

Calming Treats for Dogs: What Scientific Research Reveals About Anxiety Relief

The market for dog calming treats is extensive, but the evidence behind their ingredients is often sparse. A 2025 study from French veterinary and agricultural researchers provides a rare look at the measurable biological effects of one such ingredient. The team, led by Roy and Aberkane from Oniris and Nor-Feed SAS, gave 20 beagle dogs either a placebo, a lemon balm extract, its key compound, or a pharmaceutical alternative for four weeks. Behavioral scores for the placebo group averaged -3.4, while dogs receiving lemon balm extract averaged 2.0, a statistically significant improvement. The research offers a template for understanding what makes a calming treat effective.

A 5.4-Point Behavioral Improvement with Lemon Balm Extract

The 2025 study employed a standardized evaluation grid developed by the veterinary school Oniris to measure changes in canine behavior. After four weeks of daily supplementation, the group receiving a commercial hydro-alcoholic Melissa officinalis (lemon balm) extract at 200 mg/kg showed a mean behavioral score of 2.0. The placebo group, receiving only maltodextrose, scored -3.4. This difference of 5.4 points represents a clear, quantifiable calming effect.

How Behavioral Change Was Measured

The researchers did not rely on owner surveys, which can be subjective. Instead, they used a professional assessment tool to evaluate specific behaviors linked to anxiety and stress reactivity in a controlled setting. This method provides a more objective benchmark for comparing the efficacy of different calming supplements.

Comparing Natural and Pharmaceutical Options

The study included a group receiving α-casozepine (AC), a milk protein derivative used in some veterinary calming products, at 225 mg. This group’s mean score was 0.8, indicating a positive effect but one that was less pronounced than the lemon balm extract’s result of 2.0. This direct comparison within a single trial is valuable for contextualizing the potency of natural options.

Metabolomics Suggests a Novel Mechanism of Action

Beyond behavior, the study used untargeted metabolomics—an analysis of thousands of small molecules in the body—to investigate how the supplements changed the dogs’ internal chemistry. This approach moves beyond guessing at mechanisms to observing actual metabolic shifts.

Gamma-Hydroxybutyric Acid (GHB) Levels Dropped

A targeted analysis measured 4-hydroxybutyric acid (GHB), a metabolite in the gamma-aminobutyric acid (GABA) pathway. GABA is a primary inhibitory neurotransmitter associated with calmness. Levels of GHB decreased in all supplemented groups compared to the control. This suggests the supplements may influence GABA-related metabolism, a common target for anxiolytic effects.

Lemon Balm Altered Lipid and Bile Acid Pathways

The untargeted metabolomics data revealed that the lemon balm extract supplementation notably affected metabolic pathways related to lipids and bile acids. The major compound in the extract, rosmarinic acid (RA), given separately at 10.6 mg/kg, specifically impacted fatty acids and lipids metabolism. These pathways are not traditionally the first suspects for anxiety relief, indicating lemon balm’s effect may be more systemic than simply acting on brain receptors.

Practical Considerations for Choosing a Calming Treat

Evidence from controlled studies should inform product selection. The 2025 research points to specific factors owners can consider when evaluating calming treats for their anxious dogs.

Identifying Evidence-Based Ingredients

The core ingredient tested, Melissa officinalis extract, is commonly called lemon balm. Products that feature this ingredient and specify a hydro-alcoholic extract form may be more likely to align with the study’s positive results. The study also isolated rosmarinic acid as a key active component; labels highlighting this phytochemical offer further transparency.

Understanding Dose and Form

In the study, the effective dose of the full lemon balm extract was 200 mg per kilogram of body weight daily for four weeks. For a 10 kg dog, this translates to 2000 mg, or 2 grams, of extract per day. Most commercial calming treats contain a blend of ingredients at lower doses, so matching this level may require a dedicated supplement rather than a treat. The extract was administered directly, not baked into a treat, which could affect stability and bioavailability.

Integrating with Behavioral Management

Calming treats are a management tool, not a cure. They should be part of a broader strategy that includes identifying anxiety triggers, providing a secure environment, and using positive reinforcement training. For severe cases like separation anxiety, a multi-modal approach involving a veterinarian is essential, as detailed in our guide on separation anxiety in dogs.

Limitations of the Current Research and Product Claims

The study provides strong evidence for lemon balm extract but also illustrates the general gaps in the field. Twenty beagles were used, which is a robust sample for a controlled trial, but beagles are a specific breed known for a particular temperament. Results may differ in other breeds with different anxiety profiles. The study period was four weeks; long-term effects and safety over months or years of use are not yet documented. Finally, the research examined single ingredients, while most commercial calming treats are complex blends. The interaction of multiple herbs, amino acids, and vitamins in a single treat remains largely unstudied.

Key Takeaways

• A 2025 study found a lemon balm (Melissa officinalis) hydro-alcoholic extract significantly improved calm behavior scores in beagles compared to a placebo.
• The behavioral improvement was measured objectively using a standardized veterinary assessment grid, not owner reports.
• Metabolomic analysis showed the extract altered lipid and bile acid metabolic pathways and reduced a GABA-pathway metabolite, suggesting a systemic mechanism.
• The effective dose in the study was 200 mg/kg body weight daily, which may be higher than the dose provided in many commercial calming treats.
• Calming treats with evidence-backed ingredients like specific lemon balm extracts can be a useful part of an anxiety management plan but are not a substitute for veterinary diagnosis and behavioral training.
• Research on single ingredients is advancing, but scientific data on the combined effects of multi-ingredient calming treats is still limited.

This article is for informational purposes only. Consult a qualified professional for personalised advice.

Sources:
https://pubmed.ncbi.nlm.nih.gov/40646521/
https://pubmed.ncbi.nlm.nih.gov/33996972/