Why pet pigs gain weight so readily
A pig is an outstandingly efficient converter of food into pig. Bred over generations to grow fast on whatever is offered, a pet pig's appetite rarely switches off at the point its body has had enough — it will eat the bowl, the spilled feed, the fallen fruit and anything a soft-hearted household member produces afterwards. Fat then accumulates exactly where it does a pet pig most harm: over the shoulders and face, around the joints it must carry through a long life, and in heavy cases in folds that press over the eyes. Begging is part of the problem, because pigs learn within days which sounds and faces produce snacks.
Setting the daily portion
The foundation of weight control is a measured daily amount of a feed actually formulated for pigs, weighed or scooped by the same measure every day rather than poured by eye. Split it into two meals so the pig has structure to its day, and set the starting amount by the pig's size and current condition, then adjust in small steps according to what your hands tell you — you should be able to feel the ribs under a covering you would describe as padding, not upholstery. Appetite is not a guide: a pig at a perfect weight will still act ravenous, because acting ravenous is what pigs do. Weigh the pig occasionally if facilities allow, or score condition by hand on the same day each month, and adjust the measure in small steps rather than crash-dieting an animal whose begging will outlast your resolve.
Making the same food last longer
A portion eaten in ninety seconds leaves a clever, hungry animal with a long empty day, so how the ration is served matters almost as much as how much. Scatter the pellets across clean grass or a swept yard so the pig has to forage piece by piece, use a slow-feeder ball or a muffin tin with the pellets tucked into the cups, and spread the day's vegetables around the pen rather than heaping them in one bowl. This turns feeding from an event into an activity, burns a little energy in the seeking, and drastically reduces the frustration behaviours — rooting up flooring, raiding bins, shouting at mealtimes — that an under-stimulated pig invents for itself.
Treats, extras and the household problem
Most pet pigs are not fattened by their owners but by their households: a handful of pellets from one person, a banana from another, windfall apples nobody counted. Fruit is a particular trap because pigs adore it and it carries far more sugar than the vegetables owners think they are swapping it for. Make the rule simple and visible — treats come out of the day's measured allowance, never on top of it, and leafy greens, cucumber and courgette are the default hand-fed extras. Then keep one shared feeding record so a meal given is a meal logged — and post the allowance where everyone can see it, on the feed bin or the fridge, so a visitor's kindness cannot quietly become a second breakfast. Writing that allowance and each pig's check-ins into KinsLe's Care Teams gives the whole household one version of what the pig has actually eaten today.