What Do Goats Eat? Complete Diet & Feeding Guide

Goats are ruminant browsers, meaning they have a four-chambered stomach (rumen, reticulum, omasum, abomasum) designed to ferment and extract nutrients from fibrous plant material. Unlike cattle and sheep, which are primarily grazers eating grass, goats naturally prefer to browse — reaching up to eat leaves, bark, twigs, shrubs, weeds, and brush.

This browsing instinct is why goats are famous for eating seemingly everything. They are actually highly selective eaters that use their lips and tongue to sort through vegetation, choosing the most nutritious parts. They do not truly eat tin cans or clothing — they investigate objects by mouthing them, which is normal exploratory behavior.

The rumen is the largest stomach compartment and functions as a fermentation vat where billions of microorganisms break down plant fiber into volatile fatty acids that the goat uses for energy. This microbial fermentation process is why gradual diet changes are critical for goats. Sudden feed changes can disrupt the rumen microbial population, causing bloat, acidosis, or enterotoxemia (overeating disease), which can be fatal.

Goats have a faster digestive passage rate than cattle, which means they need higher-quality forage to extract adequate nutrition. They also have a higher metabolic rate per unit of body weight, which translates to relatively higher nutrient requirements than their size might suggest.

A healthy goat's diet should be approximately 70-80% forage (hay, browse, pasture) with the remainder from grain concentrates and minerals as needed for the goat's production level.

Goats can safely eat a variety of foods as treats and supplements alongside their hay and feed.

Vegetables: Carrots, squash, pumpkin (seeds included), sweet potatoes, beets, turnips, celery, green beans, peas, cabbage, broccoli, cauliflower, and bell peppers. Root vegetables are often favorites.

Fruits: Apples (no large quantities of seeds), pears, bananas (including peels), watermelon (rind included — a favorite), grapes, berries (strawberries, blueberries, blackberries, raspberries), cantaloupe, peaches, and plums. Fruits are sugary and should be offered sparingly.

Browse & Forage: This is where goats truly shine. Safe browse includes blackberry canes, raspberry canes, rose bushes, honeysuckle, pine needles and bark, willow, maple leaves, oak leaves (in moderation — high tannins), dandelions, plantain, clover, and most non-toxic weeds. Goats are natural brush-clearers.

Grains & Seeds: Whole or rolled oats, barley, corn (cracked or whole), sunflower seeds (black oil sunflower seeds are excellent for coat condition), and wheat. Grain should be fed carefully — see the commercial feed section.

Herbs: Basil, parsley, oregano, thyme, rosemary, lavender, and mint. Many herbs have mild health-supporting properties.

Key rule: Treats should be a small supplement to the forage-based diet. Excess grain or fruit can cause rumen acidosis, bloat, and obesity. Always introduce new foods gradually over several days to allow the rumen to adjust.

Goats are surprisingly vulnerable to toxic plants, and plant poisoning is a leading cause of illness and death in goats.

Highly toxic plants (can be fatal): Rhododendron, azalea, mountain laurel, yew (all parts), cherry leaves (especially when wilted — release cyanide), red maple leaves (wilted), oleander, foxglove, lily of the valley, water hemlock, poison hemlock, nightshade, and milkweed.

Moderately toxic plants: Bracken fern, buttercup, St. John's wort, black walnut (leaves and shavings), rhubarb leaves, and wild onions in large amounts.

Foods that cause digestive problems: Bread, crackers, and other processed foods in significant quantities. Excess grain — especially when introduced suddenly — can cause fatal acidosis or enterotoxemia. Moldy hay or grain (mycotoxins cause liver damage and immune suppression).

Avocado: The skin, pit, and leaves contain persin, which is toxic to goats.

Chocolate and caffeine: Theobromine is toxic to goats as it is to most livestock.

Dog and cat food: Not appropriate for ruminants and may contain additives harmful to goats.

Critical note on pasture management: Survey all pastures, paddocks, and browse areas for toxic plants before allowing goats access. Goats are more likely to eat toxic plants when preferred forage is scarce, during drought, or when curious about new plants. Fence goats away from landscaped areas with ornamental shrubs, as many common ornamentals are highly toxic.

Copper caution for mixed species: While goats NEED copper, sheep are extremely sensitive to copper toxicity. Never feed sheep minerals to goats (copper-deficient) or goat minerals to sheep (potentially fatal copper excess).

Goat nutritional requirements change significantly with age, reproductive status, and production purpose.

Kids (0-8 weeks): Newborn kids need colostrum within the first 1-2 hours of life for immune protection. After colostrum, kids nurse from the dam or receive bottle-fed goat milk or kid milk replacer. Introduce hay and a small amount of kid starter grain (18-20% protein) from about 1-2 weeks old to begin rumen development. Water should always be available.

Weanlings (8-16 weeks): After weaning, kids should have free-choice access to quality hay and a growing ration (16-18% protein). Good hay is the foundation — kids are learning to be ruminants and need fiber to develop a functional rumen. Begin offering loose goat minerals.

Growing/yearlings (4-12 months): Continue quality hay free-choice with moderate grain (0.5-1% of body weight in grain). Protein needs depend on growth rate and breed. Maintain free-choice loose minerals and fresh water.

Adult maintenance (non-pregnant, non-lactating): Most adult goats in maintenance can thrive on quality hay or pasture/browse alone plus loose minerals and fresh water. Grain may not be needed at all unless body condition drops. This includes pet wethers, dry does, and retired animals.

Pregnant does (last 6 weeks): The final 6 weeks of gestation see rapid fetal growth. Gradually increase grain (up to 1-1.5% of body weight) to prevent pregnancy toxemia (ketosis). Ensure adequate protein (14-16%) and energy. Continue quality hay free-choice.

Lactating does: Dairy does in heavy production may need 2-4 pounds of grain daily (16-18% protein) in addition to free-choice hay. Adjust grain based on milk production — roughly 1 pound of grain per 2-3 pounds of milk. Meat breed does raising twins need supplemental grain too.

Bucks: During breeding season, bucks often go off feed and lose body condition. Build condition with moderate grain supplementation before breeding season. Outside breeding season, most bucks do well on hay and minerals alone.

The foundation of goat nutrition is forage, not commercial feed. Grain and commercial feeds supplement forage when production demands exceed what hay and browse provide.

Hay types: Timothy, orchard grass, and Bermuda grass hays are good general-purpose options. Alfalfa hay is higher in protein and calcium and is excellent for lactating does and growing kids, but too rich for most maintenance animals and can cause urinary stones in bucks and wethers. A mix of grass hay and alfalfa often works well for mixed herds.

Goat-specific pelleted feed: Available from most feed manufacturers (Purina, Manna Pro, etc.), these are formulated for goats with appropriate protein, minerals, and copper levels. They come in various formulations: maintenance, grower, dairy, and meat goat. Pellets reduce waste and prevent selective eating.

Textured (sweet) feed: A mix of grains (oats, corn, barley) with pellets and molasses. Highly palatable but easy to overfeed. Use cautiously and measure portions carefully.

Whole grains: Some goat keepers prefer feeding whole or rolled oats, barley, or corn directly. This allows more control over the ration but requires more knowledge of nutritional balancing. Oats are the safest whole grain for goats due to a favorable energy-to-fiber ratio.

Important: Goats should never be fed free-choice grain. Overconsumption of grain causes rumen acidosis (which can be fatal) and enterotoxemia (overeating disease). Always measure grain portions and increase amounts gradually over 7-14 days.

Cost: Goat-specific feed runs approximately $15-$25 per 50-pound bag. Alfalfa hay costs $8-$20 per bale depending on region and quality. Grass hay is typically less expensive.

Proper mineral supplementation is one of the most important aspects of goat nutrition and one of the most commonly mismanaged.

Loose goat minerals: Goats need a loose mineral formulated specifically for goats (not sheep, not cattle, not a generic livestock mineral). The mineral should contain copper, which is essential for goats but toxic to sheep. Goats cannot get adequate minerals from a mineral block — their tongues are not rough enough to lick sufficient quantities. Provide loose minerals free-choice in a covered feeder.

Copper: Deficiency is common and causes rough coat, faded color (especially in darker goats), poor immune function, fish-tail (balding tail tip), and anemia. Many goat keepers supplement with copper boluses (COWP — copper oxide wire particles) 1-2 times per year in addition to loose minerals, especially in areas with high-iron water or soil.

Selenium: Deficiency causes white muscle disease in kids and poor immune function in adults. Selenium levels vary by soil region — much of the eastern US is selenium-deficient. Injectable selenium (BoSe) at birth is common practice in deficient areas. Loose minerals should contain selenium.

Baking soda: Many goat keepers offer baking soda (sodium bicarbonate) free-choice as a rumen buffer. While not essential if feeding is well-managed, it provides a safety margin against mild acidosis.

Probiotics: Useful during stress (transport, weather extremes, illness, diet changes) to support rumen microbial health. Available as pastes, powders, or drenches.

Vitamin E: Works synergistically with selenium. Supplementation is particularly important for pregnant does and young kids in selenium-deficient regions.

Kelp: Some goat keepers offer dried kelp free-choice as a natural mineral supplement. It provides trace minerals and iodine. Use as a supplement to — not replacement for — a quality loose goat mineral.

Goat nutrition management shifts with the seasons:

Winter: Goats need more hay and energy to maintain body temperature. Increase hay rations — a mature goat may eat 4-5+ pounds of hay per day in cold weather. Grain supplementation may be needed to maintain body condition, especially for pregnant does in late gestation. Warm (not hot) water encourages drinking, which supports rumen function and milk production. Check that water does not freeze.

Spring: Transition to fresh pasture gradually over 7-14 days. Sudden access to lush spring grass can cause bloat and scours (diarrhea). Continue offering hay during the transition so goats can balance their own intake. Spring is kidding season — ensure does have adequate nutrition for the energy demands of labor and lactation.

Summer: Quality pasture and browse are at their peak. Goats on good pasture may need little to no grain supplementation except for heavy milkers. Ensure unlimited access to clean, cool water — goats drink 1-4 gallons per day, more in heat. Provide shade and ventilation. Parasites are at peak levels in summer; rotational grazing helps manage parasite loads.

Fall: Browse quality declines as plants go dormant. Begin transitioning to stored hay for the winter months. This is pre-breeding season for many herds — does should be in good body condition (flushing — increased nutrition before breeding — can improve conception rates). Evaluate body condition and adjust feed before winter.