Calming Supplements Chicken Flavor Soft Chews
Verified Jul 17, 2026
A soft chew calming supplement for adult dogs, using L-tryptophan and L-theanine as the main active ingredients to support relaxation during everyday or occasional stress. The chews are chicken-flavored and wheat- and millet-based, making them more of a treat-style supplement that can be given alongside a regular complete diet. This product is meant as a targeted calming aid, not as a stand-alone food.
This is a thoughtfully formulated calming supplement for adult dogs, using well-known amino acids (L-tryptophan and L-theanine) at meaningful doses in a palatable soft chew. It’s a reasonable option for dogs who need mild calming support in specific situations, as long as it’s used in addition to a balanced diet. As with any calming aid, individual response can vary, and dogs with chicken or wheat sensitivities would need a different product.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
KibbleLab may earn an affiliate commission when you buy through a link. No one can pay for a higher score, or to change what we recommend for your pet.
At a Glance
KibbleLab Review
Strengths
- Uses L-tryptophan and L-theanine, two widely used ingredients for supporting relaxation and calm behavior in dogs.
- Soft chew format with real dried chicken and flavorings makes it easy to give like a treat for most dogs.
- Contains natural preservatives such as citric acid and mixed tocopherols, which help maintain product stability.
- Produced under the NASC (National Animal Supplement Council) quality seal, indicating adherence to supplement quality and labeling standards.
Considerations
- Contains dried chicken and wheat flour, which can be problem ingredients for dogs with known chicken or wheat allergies or sensitivities.
- This is a supplement, not a complete and balanced diet, so it must be given along with a nutritionally complete dog food.
- Calming responses to L-tryptophan and L-theanine can be quite individual; some dogs may benefit more than others.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
L-Tryptophan
L‑Tryptophan is an essential amino acid used in pet foods to meet amino acid needs and, when supplemented, to support production of neurotransmitters such as serotonin and melatonin. It is important for protein synthesis and may help with mood, sleep, or mild anxiety in some dogs and cats, but supplemental doses should be used under veterinary guidance since diet usually supplies adequate amounts and improperly manufactured supplements have on rare occasions caused adverse effects.
02
L-Theanine
L‑Theanine is a naturally occurring amino acid commonly added to pet foods and supplements as a calming/functional ingredient to help reduce stress and promote relaxation without sedation. It has shown promise in dogs (and to a lesser extent cats) for easing situational anxiety and improving calmness, but effects can vary, proper dosing is important, and owners should consult their veterinarian—especially if the pet is on medications or has health conditions—because it is an adjunct to, not a replacement for, behavioral training or medical treatment.
03
Canola Oil
Canola oil is used in pet foods as a concentrated fat source and palatability enhancer that supplies energy and essential fatty acids—mainly omega‑6 (linoleic acid) and some omega‑3 (ALA)—and aids absorption of fat‑soluble vitamins. It can support skin and coat condition when balanced with animal fats or supplemental omega‑3s, but is calorie‑dense so must be portioned to avoid weight gain, does not provide species‑specific fats such as arachidonic acid for cats, and must be kept fresh to prevent oxidation.
04
Citric Acid
Citric acid is commonly used in pet foods as a preservative, pH adjuster and mild flavoring agent that helps inhibit microbial growth and chelate metals to slow fat oxidation and preserve color and freshness. It provides no nutritional value for dogs or cats and is generally safe at the low levels used in commercial diets, though concentrated forms or excessive intake can cause gastrointestinal upset or decreased palatability in sensitive animals.
05
Chicken
Chicken is a common animal-based protein in dog and cat foods, supplying essential amino acids, B vitamins, and energy-dense fats that support muscle maintenance, growth, and overall health; for cats it also contributes toward dietary taurine but must be present in sufficient amounts or provided via supplementation. It is prized for its digestibility and palatability, though some pets develop sensitivities or allergies to chicken, and nutritional value and safety depend on ingredient quality and processing—raw chicken carries pathogen risks and whole bones can pose choking or GI hazards.
Product Details & Brand
Product Specs
Brand
Greenies is a dental treat brand for dogs and cats under Mars Petcare. It focuses on oral health, offering chews and treats designed to help reduce plaque and tartar buildup and freshen breath. Many Greenies products carry the Veterinary Oral Health Council (VOHC) Seal of Acceptance for plaque and/or tartar control, and the brand is frequently recommended by veterinarians for dental care support.
Visit GreeniesManufacturer
Mars Petcare operates large-scale manufacturing facilities in North America, Europe, Asia-Pacific, and Latin America with formal quality and food safety systems modeled on human food standards. Facilities follow HACCP-based programs, Good Manufacturing Practices, and are routinely audited for compliance with local regulatory bodies (e.g., FDA and USDA in the U.S., FEDIAF-related standards in Europe). Mars maintains in‑house research and development centers, employs veterinarians and pet nutrition scientists, and conducts digestibility and palatability studies and AAFCO feeding trials for many of its complete-and-balanced diets.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Greenies Calming Supplements Chicken Flavor Soft Chews has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Greenies ever been recalled?
We have no recalls on record for Greenies. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
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