Dog: They stop eating when things change

Dogs rarely stop eating altogether from temporary stress — which is exactly why it deserves more attention.

Also called · not eating after moving house · appetite loss after hospitalisation · won’t eat in a new place

What it looks like

Why it happens

A dog eating nothing means look elsewhere

Dogs rarely stop eating completely from temporary stress. If a dog eats nothing at all, it is usually illness or pain, or a genuinely unstable mental state such as stereotypy or a phobia.

Not eating is itself partly a defence

Infection and stress increase signalling molecules in the brain that directly suppress the feeding centre. It is thought to conserve energy for the immune response.

What to do

Go back to the familiar food

Trying a new food under stress works against you. Restore eating with what they already know.

Find what triggered it

Retrace what happened where they eat. Noise, another animal, a slippery floor, or a bowl placed too close to the litter tray are common causes.

Give them somewhere that feels safe

Move the feeding spot and make sure they have a place to hide, so the underlying anxiety drops.

Consider a calming supplement

α-S1 tryptic casein (alpha-casozepine), L-theanine and GABA are used for anxiety. In a trial with cats showing signs of anxiety, aversion to contact, fear responses and displacement behaviour fell significantly; in dogs the effect was comparable to an anti-anxiety drug. No effect on aggression was found. (Beata et al., J Vet Behav 2, 2007)

See a vet if

If a dog continues to eat nothing at all, do not treat it as stress. See a vet.

Common questions

Will a supplement fix the anxiety?

There is reason to think it can help to some degree, and it is worth trying. But it works as a support alongside changes to the environment and behaviour, not instead of them.

Related behaviors

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    General behaviour and nutrition information. It does not replace diagnosis or prescription. Similar behaviour does not always have the same cause, and the cause is not necessarily diet or environment — have a vet rule out illness first, and consult a behaviour specialist where needed.

    Other behaviors