What happens if chickens get too much protein?
Emily Sparks
Published Jan 19, 2026
For laying birds, like what most backyard chicken keepers raise, higher protein only becomes necessary during times of molt. Too much overall protein in a chicken's diet could lead to kidney failure, so it's best to stay within recommended protein levels for your birds.
How much protein do laying chickens need?
Research indicates that light breed hens require at least 17 grams of well-balanced protein per day.What does protein do for chickens?
Protein is a vital nutrient for poultry and other classes of animals. During the winter months, the additional amino acids play a significant role in maintaining daily egg production, adaptation to the environment and feather growth for warmth, along with other biological functions.Is high protein good for laying hens?
Extra protein for chickens is necessary in most situations. Even if they are consuming a high-protein food, chickens that free range or also consume scraps usually need more protein for optimum health and laying.How does protein affect chicken growth?
Milne (1932) observed an adverse effect on the growth and liveability of chickens fed diets containing 38% protein. Heller and Penquite (1945) found poor growth in chickens on diets containing 35 or 40% protein.What Happens When You Eat Too Much Protein
Do my chickens need more protein?
Pullets seven to eighteen weeks of age should be fed 17% to 18% protein. After nineteen weeks of age and throughout their egg-laying cycle, hens need about 16% protein. Hens or chickens that are molting can be fed an increased amount of dietary protein, up to about 20% and a lower amount of calcium.Can you overfeed chickens?
Overfed chickens can gain weight and that which may cause them to become less mobile and to move less. If you see any changes in their regular moving behavior, it may be a sign that they are eating too much. Pay close attention to their regular everyday habits, so you can notice any changes as soon as they happen.How can I fatten up my chickens?
Natural FoodYou can supplement what you give the chicken to help it fatten up more. Cracked corn, whole wheat and soy can be fed to chickens throughout the day. These items help to pack on the weight.