Can Dogs Eat Deadly Nightshade?

Deadly nightshade, also known as belladonna, lives up to its name and is one of the more seriously toxic plants a dog could encounter, containing tropane alkaloids like atropine that affect the nervous system, heart, and digestive tract even in fairly small amounts. It grows wild in hedgerows, woodland edges, and waste ground in many areas, with dark, shiny berries that can look tempting to a curious dog investigating undergrowth on a walk. The effects can come on relatively quickly and involve a distinctive combination of dilated pupils, a racing heart, and disorientation, which together should raise immediate concern rather than being mistaken for a milder stomach upset. Given how toxic even small amounts can be, any known or suspected ingestion of deadly nightshade - berries, leaves, or the whole plant - needs to go straight to an emergency vet rather than being watched at home.