Home & Health
Spice, Safety, and the Cats We Love
A considered guide to the cinnamon in your pantry, and to the one form of it that has no place in a home with cats.
Cinnamon is the friendliest spice in the kitchen. It warms a winter morning, sweetens without sugar, and carries a reputation as a quiet health food. Yet that single word on the label covers two very different barks. Ceylon cinnamon, from Sri Lanka, is mild and sweet. Cassia, the type most often sold as plain “cinnamon” in grocery stores, is tangier and carries far more of a natural compound called coumarin.1
At The Cat House Foundation we think about the whole household, so this guide comes in two parts: what cinnamon means for the people at your table, and what it means for the cats who share your home.
Part oneFor the people at the table
Choose the gentler bark for everyday use.
Ceylon Cinnamomum verum
Fine, papery layers rolled like a cigar. Pale, delicate, and floral, with only trace coumarin.
For daily use and children’s food
Cassia Cinnamomum cassia and relatives
One thick, hard scroll. Dark, hot, and bold, with considerably more coumarin.
For occasional baking
Coumarin can harm the liver in sensitive people when eaten in large amounts over time. The German Federal Institute for Risk Assessment (BfR) and the European Food Safety Authority (EFSA) both set a Tolerable Daily Intake (TDI) of 0.1 milligrams of coumarin per kilogram of body weight.2 What that means in your own kitchen depends on who is eating.
Your household’s cassia limit
Move the slider to a family member’s weight.
An estimate based on the BfR’s finding that about 2 grams of average cassia reaches the limit for a 60-kilogram adult.1 Coumarin varies considerably from jar to jar. An occasional indulgence over the holidays is not considered a health risk; the concern is a heavy daily habit.2
Ceylon, by contrast, contains only trace coumarin. Sri Lankan researchers have found it well tolerated, with laboratory evidence of antioxidant, antimicrobial, and blood-sugar-lowering activity, though results in human trials have so far been modest.3,4
A hidden risk in the jar
Some dangers have nothing to do with the plant. In 2023 and 2024, Ecuador’s National Agency for Health Regulation, Control and Surveillance (ARCSA) investigated children’s fruit purées made with lead-contaminated cinnamon, and university testing there found lead in several everyday spices at up to 20 times the permitted limit.5,6
The pantry notebook
- Look for Cinnamomum verum or zeylanicum on the label for anything eaten daily, and reserve cassia for occasional baking.
- Keep children to no more than half a teaspoon a day, as Austria’s food-safety agency advises.7
- Buy from brands that test for heavy metals, and pass on unusually cheap, bright-red bulk powder.
- If you take blood-sugar medication or cinnamon supplements, speak with your doctor first.
Is cinnamon safe for cats?
The spice is a minor concern. The oil is the real danger.
Cinnamon essential oil is poisonous to cats, as are many popular oils and liquid potpourris. A cat can be harmed by licking them or simply by getting them on its skin. Cats have fewer of the liver enzymes needed to process these compounds, kittens and cats with liver disease are especially sensitive, and there is no antidote. A few licks can be enough to cause harm.8
The most welcoming room for a cat is one that smells of nothing at all.The Cat House Foundation
Room by room
The living roomDiffusers, candles, and seasonal scent
AvoidRunning a cinnamon oil diffuser where your cat rests. Oils can settle on fur and skin and be licked off during grooming.
BetterSeasonal warmth from texture and light instead: linen, wool throws, dried citrus garlands kept well out of reach.
The kitchenStovetop potpourri and baking day
AvoidLeaving simmering potpourri unattended. Curious cats investigate sweet smells.8
FineBaking with cinnamon as usual. Keep the finished rolls on your plate, not in the cat’s bowl.
The pantry and cupboardsOils, extracts, and storage
IdealOil bottles tightly capped and stored behind a closed cabinet door.
AvoidAdding cinnamon to homemade cat treats. It offers cats nothing.
The cleaning cupboardNatural cleaners and sprays
AvoidHomemade cleaners scented with cinnamon or other essential oils on floors and surfaces cats walk across.
BetterAsking your veterinarian before any oil or herbal product is used on or around your cat.8
When to call the veterinarian
If your cat drools, vomits, wobbles, struggles to breathe, or has red or burned-looking skin or mouth after contact with an oil, call your veterinarian right away. Early treatment offers the best chance of recovery.8
Why this matters to our mission
These same principles guide the spaces we are working toward: feeding stations, foster homes, and The Cat House Sanctuary. Cat House is a conscious for-profit company that directs a share of its proceeds toward animals and humanity, including feeding cats, beach cleanups, and awareness campaigns for at-risk animals.
A thoughtful kitchen protects children, and a scent-conscious home protects the cats who share it. Please pass this along to anyone who fosters, feeds, or loves a cat.
Read the full featureSources
- German Federal Institute for Risk Assessment (BfR). “Cassia cinnamon with high coumarin contents to be consumed in moderation.” bfr.bund.de
- German Federal Institute for Risk Assessment (BfR). “FAQ on coumarin in cinnamon and other foods.” bfr.bund.de
- Ranasinghe P, et al. “Medicinal properties of ‘true’ cinnamon (Cinnamomum zeylanicum): a systematic review.” University of Colombo, Sri Lanka, 2013. Full text
- “Effects of Cinnamomum zeylanicum (Ceylon cinnamon) extract on lipid profile, glucose levels and its safety in adults: A randomized, double-blind, controlled trial.” Sri Lanka, 2025. Full text
- Agencia Nacional de Regulación, Control y Vigilancia Sanitaria (ARCSA), Ecuador. Health alert on lead-contaminated products. controlsanitario.gob.ec
- Pontificia Universidad Católica del Ecuador (PUCE). “PUCE apoya a ARCSA en investigaciones sobre contaminación de alimentos.” conexion.puce.edu.ec
- Austrian Agency for Health and Food Safety (AGES). “Coumarin.” ages.at
- VCA Canada Animal Hospitals. “Essential Oil and Liquid Potpourri Poisoning in Cats.” vcacanada.com