Sodium and Salt Intake for Babies
The short answer
Babies under 12 months should consume less than 400 mg of sodium per day (less than 1 gram of salt), and toddlers aged 1-3 should have no more than 800 mg of sodium per day. Babies' immature kidneys cannot process excess sodium efficiently. Breast milk and formula provide the right amount of sodium for infants. When introducing solids, do not add salt to baby food and be cautious with processed foods, which often contain high sodium levels.
By Age
What to expect by age
Breast milk contains about 160 mg of sodium per liter, which is the perfect amount for newborns. Infant formula is carefully formulated to match this level. No additional sodium is needed or safe at this age. A baby's kidneys are still immature and cannot efficiently excrete excess sodium, making overconsumption potentially dangerous.
Continue exclusive breastfeeding or formula-feeding. The sodium content in breast milk and formula remains adequate. Never add salt, soy sauce, or other high-sodium seasonings to anything given to an infant. If complementary feeding begins around 4-6 months under pediatric guidance, foods should be unseasoned.
As solids are introduced, babies begin consuming some sodium from foods naturally. The adequate intake for infants 7-12 months is 370 mg of sodium per day. Avoid adding salt to homemade baby food and read labels on commercial baby foods. Be cautious with bread (which can be surprisingly high in sodium), cheese, and processed meats. Offer fresh or frozen fruits and vegetables (without added sauces) as primary foods.
Toddlers aged 1-3 should consume no more than 800 mg of sodium per day, but many toddler diets far exceed this. Common high-sodium culprits include deli meats, hot dogs, canned soups, cheese, crackers, and restaurant foods. When cooking for the family, season adult portions separately and keep toddler portions unsalted or lightly salted. Gradually exposing your toddler to a variety of flavors using herbs and spices rather than salt helps establish healthier long-term preferences.
What Should You Do?
When to take action
- Your baby is exclusively breastfed or formula-fed and receiving no additional sodium
- Your baby eats homemade foods prepared without added salt and a few low-sodium commercial baby foods
- Your toddler occasionally eats foods with moderate sodium content as part of a varied diet
- Your toddler drinks plain water and milk rather than salted or flavored beverages
- Your toddler's diet consists largely of processed or packaged foods and you are concerned about sodium intake
- Your baby or toddler seems excessively thirsty, which could indicate high sodium intake or other conditions
- You are unsure how to read nutrition labels for sodium content in baby and toddler foods
- Your baby has accidentally consumed a large amount of salt (such as eating salt directly or drinking very salty water) and is showing signs of irritability, vomiting, or lethargy
- Your baby or toddler has significant swelling (edema), reduced urine output, or extreme thirst following high sodium intake
Sources
Related Resources
Related Feeding Concerns
When to Introduce Allergens to Baby
Current guidelines recommend introducing common allergens (peanut, egg, cow's milk products, tree nuts, wheat, soy, fish, shellfish, sesame) starting around 4-6 months when your baby is developmentally ready for solids. The landmark LEAP study showed that early introduction of peanuts (by 4-6 months) reduced peanut allergy risk by 80% in high-risk infants. Do not delay allergens - the old advice to wait until 1-3 years has been reversed because early exposure actually prevents allergies.
I'm Worried My Baby Is Aspirating During Feeds
Aspiration means liquid or food enters the airway instead of the stomach. Occasional coughing during feeds is common and does not usually indicate aspiration. True aspiration is less common and may present as recurrent respiratory infections, a wet or gurgly voice after feeds, or chronic cough. If you are concerned, a swallow study can provide a definitive answer.
Baby Biting Nipple While Nursing
Biting during breastfeeding is a common challenge, especially when babies start teething. It can be startling and painful, but it is almost always a phase that can be managed. Babies cannot actively nurse and bite at the same time because their tongue covers the lower teeth during proper sucking. Biting typically happens at the beginning or end of a feed when the latch is not active. With some gentle strategies, most babies learn quickly that biting ends the feeding session.
My Baby Keeps Choking on Food
First, it's important to distinguish between gagging and choking. Gagging is a normal protective reflex that helps babies learn to eat, while true choking is silent and requires immediate intervention. Most "choking" episodes parents describe are actually gagging, which is common and expected as babies explore new textures. However, if your baby frequently struggles with swallowing or shows signs of true choking, it's worth discussing with your pediatrician.
Baby Choking or Coughing on Milk or Liquids
It is common for babies to occasionally cough, sputter, or have milk come out of their nose during feeding, especially in the early weeks. This usually happens because of a fast milk flow (letdown), an immature swallowing coordination, or feeding in a position that is too reclined. Occasional choking episodes during feeding that resolve quickly are usually not serious. Adjusting feeding position, pacing the feed, and using a slower-flow nipple can help.
Baby Choking vs Gagging - How to Tell the Difference
Gagging is a normal protective reflex that pushes food away from the airway - your baby will cough, sputter, or make retching sounds and will usually be red in the face. Choking is when the airway is partially or fully blocked - your baby may be silent, unable to cry or cough, and may turn blue. Gagging is noisy and resolves on its own. Choking is often silent and requires immediate action. If your baby cannot breathe, cry, or cough, begin infant back blows and chest thrusts immediately.