Underweight rescue guinea pig diet plan

An underweight rescue Silkie at around two years old — that's a situation that needs some care and a clear plan. Before we get into feeding, a quick but important note: guinea pigs are social animals and really do need to live in pairs or groups. If your Silkie is currently alone, that stress can actually make weight gain harder. But let's focus on what you came for. Can you tell me roughly how underweight she is — do you know her current weight in grams? And has a vet seen her yet, or are you working on this at home for now?

Good — knowing the vet has cleared her of underlying illness is really helpful. 650g is quite low for an adult Silkie, so you have real ground to make up, but it's absolutely doable through diet. The two pillars are unlimited timothy hay (this should always be 80% of her intake regardless) and a high-quality, calorie-dense pellet fed in generous, measured amounts. For a recovering guinea pig, the pellet matters a lot — you want something with good protein, no added sugar, and a proper vitamin C inclusion. What are you currently feeding her, if anything?

That muesli mix is almost certainly part of the problem — guinea pigs selectively eat the sugary bits and leave the nutritious pieces, so they end up with an unbalanced, calorie-light diet even when the bowl looks full. Switch her off that immediately. The pellet I'd recommend is Supreme Science Selective Guinea Pig. It's a mono-component pellet, meaning every piece is identical so she can't cherry-pick, and it's nutritionally complete with vitamin C built in. For a recovering pig, feed around 40–50g per day alongside unlimited hay, and introduce fresh leafy greens like romaine lettuce and fresh herbs — these add calories, hydration, and palatability without the sugar spike. Weigh her weekly and you should see steady gains within three to four weeks.

Resist the urge to add supplements on top of Science Selective — it already hits the vitamin C and nutritional targets, and over-supplementing can cause its own problems. What you can add safely are small daily portions of higher-calorie vegetables: a little avocado-free guacamole is a no, but a few slices of bell pepper, a sprig of flat-leaf parsley, or a small piece of cucumber will encourage her to eat more overall. If she's still not gaining after four weeks of this regime, go back to the vet — occasionally there's a gut motility or dental issue hiding behind what looks like simple undernutrition. But with a clean bill of health and the right pellet, most rescues in her position respond really well.

Perfect. Stick to the weekly weigh-ins — a kitchen scale that goes down to 1g is ideal — and keep a simple log so you can spot the trend early. She's lucky to have someone paying this much attention to her recovery. Do come back if her weight plateaus or she starts showing any other symptoms; sometimes underweight rescues have more going on once they're in a stable environment and you can observe them properly.