Why the Golden's size doesn't eliminate risk
While a 25 kg dog can often pass mango pits that would block smaller breeds, this pit's size relative to the fruit matters. A large mango pit may still be too big—measure any remaining pit halves against the width of two fingers held together. If the swallowed piece was wider, monitoring is essential regardless of the dog's size.
Big dogs can suffer intestinal perforations from sharp pit fragments, especially if they chew it into shards. Watch for sudden reluctance to lie down or panicked pacing—signs of abdominal pain that big breeds often display differently than whimpering.
The Chihuahua's indirect exposure risks
Even if the small dog didn't eat mango directly, check where the Golden vomited or if they're sharing water bowls—regurgitated pit fragments could pose a secondary hazard. Chihuahuas are curious and may investigate vomit containing dangerous pieces.
Separate their feeding areas tonight and pick up any yard stools immediately—partially digested pit pieces in the larger dog's waste could attract the small dog's attention. Use baby gates to keep them apart when unsupervised until you confirm full pit passage.
Differing timelines for each dog
The Golden may show signs within 4-6 hours (vomiting, diarrhea) or take up to 3 days for blockage symptoms if the pit moves slowly. The Chihuahua needs observation for entirely different reasons—stress from disrupted routine or food guarding by the larger dog post-incident.
Keep a symptom journal noting which dog displays what behavior. Small dogs often hide discomfort until severe, so note subtle changes like sleeping more or refusing favorite toys—these warrant investigation even without gastrointestinal signs.
Multi-dog household precautions
Store mangoes in closed cabinets—big dogs can counter-surf, scattering pits where small dogs find them later. When prepping mangoes, immediately dispose of pits in a lidded trash can small paws can't open.
Train a "leave it" command using high-value treats so any future fruit accidents are less tempting. For now, skip treats tonight to better monitor each dog's normal appetite. If both seem fine tomorrow, reintroduce their regular feeding schedule but continue checking the Golden's stool with gloves for 72 hours.
The full verdict, portion guidance and serving notes are collected on the Mango food facts page.