Vitamin-C-rich nuggets and hay-based diets. 15 brands and 7 products with manufacturer data — the average protein across the 5 pellet guinea pig foods we track is 15.6%; prices range from £12.1 to £25.08 at RRP.
pellet: 5 hay: 1 dry: 1
Dutch pet health and nutrition company with roots to 1942, strong in the UK small-animal aisle.
Yorkshire family milling business with origins traced to 1649; launched the Excel brand in 1998 with the first single-component extruded nuggets for rabbits.
Suffolk country mill founded in 1912 by Herbert George Gladwell, making one of the first branded wild-bird mixes (Supreme Wild Bird, mid-1970s).
Yorkshire farm business that grows and barn-dries its own grass to make ReadiGrass, a popular natural forage for rabbits and other small herbivores across UK pet shops..
Harringtons was launched in 2008 by Inspired Pet Nutrition (IPN), the Thirsk-based company that traces its roots to the Page family's 1923 wheat-trading business.
Mealberry Group's small-animal brand offering balanced mixes for herbivorous and omnivorous small pets.
Essex family millers established in 1824 by twins William and Henry Marriage.
Small-animal feed brand from a Lincolnshire family business that has produced animal feeds for over 100 years.
US small-animal nutrition specialist whose hay-based diets and vet-standard Critical Care recovery formula are staples with UK exotic vets.
Telford-based designer and distributor of pet food and accessories, incorporated in 1960.
Suffolk-based small-pet specialist with 30+ years' expertise; was among the first to create high-quality specialist foods for small pets.
Belgian animal-nutrition group founded in 1932, a leading European supplier of cage-bird, pigeon and small-animal foods.
German family pet-food company founded in 1837 near Bremen, still family-run.
Wagg was launched in 1985 by William Page as a complete dry dog food, when the family firm stopped making farm feeds and moved to its purpose-built site at Topcliffe near Thirsk.
German natural small-animal nutrition brand focused on species-appropriate, additive-free diets.
bunnyNature · pellet · all
Burgess Pet Care · pellet · adult
Friendship Estates (ReadiGrass) · hay · all
Little One · pellet · all
Oxbow Animal Health · pellet · adult
Rosewood Pet Products · pellet · all
Supreme Petfoods · dry · adult
Guinea pigs, like humans, can't synthesise their own vitamin C and develop scurvy without it, so their nuggets are fortified — don't substitute rabbit food, which isn't supplemented the same way. Vitamin C also degrades over time in storage, so use fresh stock and top up with vitamin-C-rich vegetables like peppers.
Unlimited hay, a small measured portion of nuggets (not muesli), and daily fresh vegetables — follow the pack guide for nugget quantity relative to body weight.
Pet specialists and online retailers carry the widest range for small pets — supermarkets typically stock only one or two mainstream brands. Every product page here links to the specific UK merchants that stock it; see our full merchant directory.