Guinea fowl need a high-protein starter feed as keets, a gradual step-down in protein as they grow, and a base layer feed supplemented by free-range foraging as adults. Their dietary needs differ from chickens at nearly every life stage, so getting the details right matters for healthy, productive birds.
Feeding Keets: Hatching Through 8 Weeks
Guinea keets require significantly more protein than baby chicks. For the first four weeks, feed a starter ration with 24% to 26% protein. The easiest way to hit that target is with a gamebird or turkey starter feed, which is formulated closer to what guinea fowl actually need. Standard chick starter typically runs around 18% to 20% protein, and that shortfall can cause real problems: slower feathering, sluggish growth, and even cannibalism in the brooder when keets aren’t getting enough protein.
From weeks five through eight, step down to an 18% to 20% protein grower feed. After eight weeks, you can transition to a standard 16% layer mash. This three-stage approach mirrors how guinea fowl develop in the wild, where protein-rich insects make up a huge portion of a young bird’s diet before they shift toward more seeds and vegetation as adults.
One common question is whether medicated feed is safe for keets. Experienced guinea breeders generally prioritize hitting the right protein percentage over worrying about medication type. If the only high-protein starter available in your area is medicated, it’s a better choice than an unmedicated feed with inadequate protein. Some dedicated guinea farms recommend starter protein as high as 28% to 30%, noting that higher protein supports lean growth and strong feather development.
What Adults Eat While Foraging
Adult guinea fowl are enthusiastic foragers and can meet most of their nutritional needs on their own during warm months with plenty of ground cover. They roam widely, eating insects, seeds, grasses, and small invertebrates. Their appetite for beetles, grasshoppers, caterpillars, and other garden pests is one of the main reasons people keep them.
Guinea fowl are frequently promoted as a natural tick control method, but the evidence on that front is less clear than social media suggests. A study published in the Journal of Medical Entomology found no evidence that guinea fowl effectively reduced lone star tick populations, though the researchers noted that gut content analysis would be needed to confirm whether the birds were eating ticks at all. Your guineas will certainly snap up insects they encounter, but counting on them to eliminate a tick problem may be optimistic.
What they will reliably do is patrol for a wide variety of bugs, weed seeds, and leafy greens. This foraging behavior supplies protein, vitamins, and minerals that supplement whatever commercial feed you provide. During peak foraging seasons, you can reduce supplemental feed slightly to prevent overeating and waste.
Choosing the Right Grains
When supplementing your flock’s diet with grains, the type of cereal you choose makes a measurable difference. Research published in the Journal of World’s Poultry Research compared millet, corn, and sorghum as energy sources for guinea fowl and found that millet produced the best growth performance, followed by corn, then sorghum.
The nutritional profiles explain why. Millet provides about 3,360 kilocalories of energy per kilogram of dry matter and contains roughly 14% protein. Corn is nearly identical in energy (3,350 kcal/kg) but lower in protein at around 11.5%. Sorghum trails both, with 3,212 kcal/kg of energy and about 11.7% protein. If you’re choosing a scratch grain or mixing your own supplement, millet gives you the best combination of energy and protein for guinea fowl specifically.
That said, scratch grains should remain a supplement, not the primary diet. Corn-heavy scratch mixes can lead to fat buildup around organs and a generally unhealthy bird. Think of grains as an energy boost, especially useful during cold weather, but not a replacement for a properly balanced feed.
Fruits, Vegetables, and Treats
Guinea fowl enjoy a variety of fresh produce as occasional treats. Safe options include leafy greens like kale, spinach, romaine lettuce, and dandelion leaves, along with vegetables such as broccoli, squash, sweet potato, peas, carrots, and zucchini. For fruit, berries (blueberries, raspberries), melon, apple, and grapes all work well. Cut produce into pieces appropriate for the bird’s size, and larger pieces are fine since they give the birds something to work at.
Vary what you offer rather than sticking to one item. Rotating through different fruits and vegetables provides a broader range of vitamins and minerals. Fresh produce is the most nutritious option, though frozen and thawed is acceptable. High-water items like celery offer little nutritional value, so save those for the occasional snack rather than a regular offering. If your birds seem uninterested in a new food, keep presenting it daily for three to five days before giving up.
One practical note from the University of Maine: avoid feeding guinea fowl scraps from garden crops you want them to protect. If your guineas learn to associate tomatoes or berries with food, they’ll start harvesting those crops themselves. Either keep them out of the garden during fruiting season or skip those particular scraps.
Seasonal Feeding Adjustments
During winter, snow cover and frozen ground eliminate most foraging opportunities. Your flock will depend almost entirely on the feed you provide, so increase the quantity of commercial feed to compensate. This is also a good time to add extra scratch grains, particularly millet or corn, for the additional energy guinea fowl need to maintain body heat.
In spring and summer, when insects and seeds are abundant, you can scale back on supplemental feed. Watch your birds’ behavior: if they’re leaving feed uneaten in the trough, you’re overfeeding. Guinea fowl that free-range actively during warm months may need only a light feeding in the evening to bring them back to the coop.
Water and Hydration
Fresh, clean water should always be available. Guinea fowl drink steadily throughout the day, and intake increases noticeably in warm weather. Keets in particular can dehydrate quickly, so check waterers multiple times daily during the first few weeks. Use shallow dishes or waterers with marbles in the tray for very young keets to prevent drowning.
For adults, standard poultry waterers work well. In freezing temperatures, you’ll need a heated waterer or plan to swap out frozen water several times a day. Dehydration in winter is a common and preventable problem since birds need water even when it’s cold, and owners sometimes underestimate consumption when temperatures drop.
Foods to Avoid
Guinea fowl are hardy and less picky than many poultry species, but a few things should stay off the menu. Avocado skin and pits contain a compound toxic to birds. Raw dried beans are dangerous. Chocolate, caffeine, and alcohol are all harmful. Onions in large quantities can damage red blood cells in poultry. Rhubarb leaves contain high levels of oxalic acid and should be avoided.
Moldy or spoiled feed is a serious risk. Mycotoxins from moldy grain can cause liver damage and suppress immune function. Store feed in dry, sealed containers, and discard anything that smells off or shows visible mold growth.