Is this normal?
Appetite swings are the rule, not the exception. Growth in the first two years comes in bursts with quieter plateaus in between, and appetite tracks the bursts. Common spurt windows cluster around 6, 9, 12, and 18 months, though every baby writes their own schedule.
Between spurts, the same baby can seem to live on air. Growth per month actually slows across the second year, so a dip in appetite after the first birthday is developmentally on-script, not a red flag. Teething and minor illnesses carve their own temporary dips too, usually followed by catch-up eating that looks like sudden gluttony.
Pediatricians assess intake across weeks and growth across months. A single picky day, or even a light week, tells you very little; the growth curve tells you nearly everything.
When to talk to your pediatrician
- Appetite loss accompanied by weight loss or falling across growth percentiles
- Refusing fluids, or signs of dehydration (few wet diapers, dry mouth, lethargy)
- A low-appetite stretch lasting beyond two weeks with no rebound
- Appetite loss with fever, vomiting, diarrhea, or unusual tiredness
- You are anxious enough to be pressuring meals: a weight check visit is quick reassurance
Why appetite comes in waves
- Growth spurts demand fuel: hungry weeks power measurable jumps in length and weight
- Post-spurt plateaus need less energy, so appetite drops back
- Teething discomfort suppresses appetite for days at a time
- Illness reduces appetite, and recovery rebounds it, often dramatically
- Big motor leaps (crawling, walking) shift energy needs and meal patience
- Growth rate naturally slows in the second year, resetting the baseline appetite downward
What to try
Follow the division of responsibility
You decide what food is offered, when, and where; your baby decides how much of it to eat, including sometimes nothing. This framework, endorsed widely in pediatric feeding guidance, keeps appetite swings from becoming battles.
Feed hungry weeks generously
During a spurt, lean into iron-rich and energy-dense foods: meats, eggs, full-fat dairy, avocado, nut butters thinly spread. Extra milk feeds under 12 months are normal during spurts too.
Ride the plateau weeks without pushing
Keep offering normal meals and let small appetites be small. Force-feeding during a plateau teaches a baby to distrust their own fullness, which is the opposite of what you want long-term.
Judge by the week, not the day
Jot rough notes for a week if you are worried. Most parents discover the intake balances out: a huge Tuesday quietly compensates for a bird-like Thursday.
Keep milk steady under 12 months
Breast milk or formula remains the nutritional backbone in the first year. Appetite dips in solids matter less while milk intake holds.
Protect the mealtime mood
Neutral, pleasant meals during low-appetite stretches preserve your baby's relationship with food. The eating returns; make sure the table is still a nice place when it does.
