Why Am I Hungrier in Winter? Food Cravings & Cold Appetite

November 4, 2026 16 min read

Metabolic Uncle Editorial Humanly reviewed and approved by The Uncle Backed by 21 peer-reviewed studies

Infographic, The Winter Appetite Mismatch showing a steaming bowl of beef, potato, carrot, and root vegetable stew on the left and four seasonal appetite and metabolism mechanisms on the right: Shorter daylight alters seasonal appetite signaling (winter light patterns extend melatonin secretion, increasing carbohydrate cravings and hunger regardless of calorie burn), Reduced movement creates energy mismatch (heated indoor environments prevent metabolic spikes while physical activity drops, leading to excess stored energy), Sunlight loss impacts vitamin D levels (winter sun lacks adequate UVB rays for skin synthesis, affecting mood regulation and circadian rhythms), and Prioritize warm, nutrient-dense whole meals (hearty stews with root vegetables and complete protein provide lasting satiety over ultra-processed snacks).

Straight to what to do

The action plan The one-page recap

TL;DR

Simulated winter photoperiods in a controlled 1991 human experiment lengthened nighttime melatonin release, while seasonal studies in 315 adults and 336 Icelandic residents documented shifts in meal size, carbohydrate intake, hunger, food cravings, and physical activity.
Afternoon and evening carbohydrate intake rose in a 1990 study of 36 patients with winter depression and returned toward summer levels after bright-light therapy, while a 2024 Australian cohort study showed that holiday routines and discretionary snacks can drive peak calorie intake even in December summer weather.
Cold exposure increases energy expenditure for heat production, yet resting metabolic rates in a 2017 cross-sectional study were virtually identical between winter and summer under standardized indoor conditions while outdoor walking and daily movement often decline in colder months.
Food structure, texture, eating rate, and energy density shape ad libitum intake, as shown in a 2019 inpatient crossover trial where adults ate roughly 508 more calories per day on an ultra-processed diet (about 280 kcal from carbohydrates and 230 kcal from fat, with similar protein intake) than on an unprocessed diet.
Slow-cooked stews with meat, potatoes, root vegetables, and broth or warm milk with honey pair complete protein, digestible carbohydrates, and minerals, while outdoor daylight sets the circadian clock, post-meal walks help manage postprandial glucose, and 25-hydroxyvitamin D testing assesses winter vitamin D status when northern UVB is limited and blocked by window glass.

Key facts

315-adult seasonal food diary study and 336-resident Icelandic cohort: Participants in the 1991 diary study ate larger meals, consumed more carbohydrates, and ate faster in autumn while still reporting greater hunger, and the 2026 Icelandic prospective study confirmed seasonal fluctuations in food cravings and physical activity.
36-patient winter depression study and 2017 indoor resting metabolic rate study: Afternoon and evening carbohydrate intake rose during winter depression and normalized toward summer levels after bright-light therapy, while resting metabolic rates under standardized indoor conditions were virtually identical between winter and summer.
508 kcal/day excess intake on an ultra-processed diet: In a 2019 randomized inpatient crossover trial, adults ate roughly 508 more calories per day on an ultra-processed diet than on an unprocessed diet, driven by about 280 additional calories from carbohydrates and 230 from fat with similar protein intake.
Winter UVB, window glass, and 25-hydroxyvitamin D testing: Outdoor daylight supports the body clock, whereas ordinary window glass blocks UVB wavelengths and northern winter sunlight supplies too little UVB for cutaneous vitamin D synthesis, making a 25-hydroxyvitamin D blood test useful when assessing status alongside depressive symptoms.

If a bowl of stew sounds especially good on a dark evening, several things may have changed at once. Shorter days, mood and holiday routines can shape winter food cravings. You may want a larger meal even when you're walking less. Your energy needs depend partly on your activity and actual exposure to cold.

In a lab experiment, shorter days lengthened the nighttime release of melatonin, a signal from your body clock. Seasonal studies have also found changes in hunger, food choices and activity. A stew or warm milk with honey can fit the appetite for comfort food. Meal timing, everyday movement and what's available to snack on also matter.

Why do winter food cravings and carb appetite feel stronger?

Your body clock, mood and surroundings can all shape when you feel hungry and what sounds good. In a controlled 1991 experiment, simulated winter days extended nighttime release of melatonin, a signal that helps mark the biological night.

Eating patterns can change along with the season. In a 1991 study of 315 adults, people ate larger meals, consumed more carbohydrates and ate faster in autumn. They reported more hunger despite eating more. A separate year-long study of 336 Icelandic residents, published online in 2025 and in print in 2026, found seasonal changes in reported food cravings and physical activity.

Mood is another part of the picture. In a separate 1990 study of 36 patients with winter depression, carbohydrate intake rose particularly in the afternoon and evening. Bright-light therapy brought intake back toward summer levels in those patients.

If a meal feels less satisfying at this time of year, appetite and food preferences may be shifting as well as your activity. The studies measured different things: a signal from the body clock, eating patterns and cravings in different groups.

Do you burn more calories in winter or cold weather?

Your body uses extra energy to make heat during cold exposure. Spending much of the day indoors in heated rooms reduces that demand. In a 2017 cross-sectional study, resting metabolic rates were virtually identical in winter and summer under standardized indoor conditions.

Walking and outdoor activity often decline in colder months. Less everyday movement can lower how much energy you use across the day. A 2006 study tracked seasonal differences in food intake, activity and body weight in a predominantly overweight group. Larger meals alongside less movement can add up to gradual weight gain over time. How much you move and how much time you actually spend in the cold both matter when putting a stronger appetite in perspective.

Can holidays change appetite and eating even in warm weather?

What's available to eat and when you eat it can change with holidays in any climate. A 2024 study that followed Australian adults found that both calorie intake and intake of discretionary foods, the extras people eat outside their basic nutritional needs, peaked in December during the Australian summer. Gatherings, abundant snacks, later meals and disrupted routines offer context for that pattern.

If your eating changes around the holidays, it helps to compare three things: the daylight you get, the food and meal timing around celebrations, and your own sleep, outdoor time and movement. They can all change in the same week.

What makes a warm winter meal satisfying for appetite?

A warm meal can be substantial and nourishing. A slow-cooked stew with meat, potatoes, root vegetables and broth brings together complete protein, carbohydrates, fats, minerals and fluid. Connective-tissue-rich cuts contribute gelatin and glycine. When you eat the broth, dissolved nutrients can stay in the meal.

Warm milk with honey offers carbohydrate energy alongside protein and minerals. A sit-down meal can bring more nutritional variety than grazing on snacks. Other carbohydrate choices include ripe fruit and orange juice, alongside the honey or potatoes in these examples.

How you eat matters, too. Eating quickly can make it easier to get through a large portion before you notice fullness. A randomized study examined how eating rate and energy density affect how much people eat when they can eat freely. Enough time to notice when you're comfortably satisfied can help you distinguish hunger from continuing to eat because food is still there. If cravings tend to arrive late in the day, compare them with your earlier meals, sleep and how long it's been since you last had a substantial meal.

Why does food structure matter for evening snacks and ultra-processed foods?

Packaged snacks can be easy to keep eating, particularly when they're close at hand on a sedentary evening. Food texture, eating speed and energy density help explain why the amount you eat can change when food is freely available.

In a 2019 randomized inpatient crossover trial, adults ate roughly 508 more calories per day when offered an ultra-processed diet than when offered an unprocessed diet. About 280 additional calories came from carbohydrates and 230 from fat. Protein intake was similar. That comparison helps put frequent energy-dense snacking in context alongside the nutritional variety of a full meal.

For home cooking, butter, ghee, coconut oil and suitable animal fats are the preferred choices over industrial seed oils. Ingredients and preparation matter alongside how much carbohydrate, protein and fat a meal contains.

How does winter daylight affect your body clock and vitamin D?

Daylight helps set your body clock. Light through a window can signal daytime, while outdoor light is generally brighter. Making use of available outdoor daylight serves that purpose even when winter sunlight at northern latitudes supplies too little UVB, the part of sunlight your skin uses to make vitamin D. Ordinary window glass blocks those wavelengths.

Vitamin D supports calcium regulation and muscle function.

Low vitamin D levels have been associated with depressive symptoms. When winter UVB and dietary intake are limited, a blood test for 25-hydroxyvitamin D can help assess vitamin D status. Whether supplementation is useful depends on individual circumstances.

The action plan

What small changes fit a winter routine?

A satisfying meal and a little everyday movement can fit the same evening. When winter cuts into your usual walking, a short walk after eating adds activity and can help manage the rise in glucose after a meal.

Cooking liquid: Keeping the broth retains dissolved nutrients in the meal. When the goal is removing soluble oxalates from certain vegetables, boiling and discarding the water serves that purpose.
Heat and leftovers: Moist cooking and moderate browning limit some of the reactions that occur at high temperatures. Large batches need prompt cooling and safe refrigeration.
Drinks: Alongside fluid volume, check what the drink contributes. Milk supplies protein and minerals, and whole and skimmed milk have both been studied for fluid retention. Mineral water can provide calcium and magnesium. Tea brewed with low-mineral water provides little of either.

Summary of winter appetite and daily routines

Appetite and fullness: Daylight, mood, meal size and eating pace. Check when you get hungry and whether the meal leaves you comfortably satisfied.
Movement and energy needs: Stronger appetite can coincide with less daily movement. Everyday walking, including after meals when convenient, adds activity.
Holidays and snacks: Food availability, later meals, sleep and disrupted routines can matter in any climate. Snack frequency, processing, energy density and fat sources also matter.
Satisfying meals: Complete protein, digestible carbohydrates and suitable fats can make up a substantial meal. Butter, ghee, coconut oil and suitable animal fats are the preferred cooking fats.
Cooking and drinks: Moist heat, moderate browning and deliberate use of cooking liquid serve different purposes. Drinks can contribute nutrients and minerals as well as fluid.
Light and vitamin D: Outdoor daylight helps set the body clock. Winter UVB and individual vitamin D status are separate considerations.

The one-page recap

Seasonal appetite, daylight and energy needs

Photoperiod and melatonin: Simulated winter days extended nighttime melatonin release in a controlled 1991 laboratory experiment.
Seasonal food intake and cravings: A 1991 study of 315 adults found larger meals, higher carbohydrate intake, faster eating, and greater reported hunger in autumn, while a 2026 study of 336 Icelandic residents found seasonal fluctuations in food cravings and physical activity.
Winter mood and carbohydrates: In 36 patients with winter depression, afternoon and evening carbohydrate intake rose and returned toward summer levels after bright-light therapy.
Indoor metabolic rate vs. cold exposure: Cold exposure requires extra energy for heat production, but resting metabolic rates in a 2017 study were virtually identical in winter and summer under standardized indoor conditions.
Holiday environment: A 2024 Australian cohort study showed that calorie and discretionary food intake peaked in December during the Southern Hemisphere summer, illustrating the role of holiday routines and snack availability.

Satisfying meals, food structure and cooking

Slow-cooked stews: Meat, potatoes, root vegetables, and broth combine complete protein, digestible carbohydrates, fats, minerals, fluid, and connective-tissue gelatin and glycine while retaining dissolved nutrients in the broth.
Warm milk with honey and fruit: Warm milk with honey, ripe fruit, and orange juice supply carbohydrate energy alongside protein and minerals.
Ultra-processed snacking and eating rate: In a 2019 inpatient crossover trial, an ultra-processed diet increased intake by roughly 508 kcal/day (about 280 kcal from carbohydrates and 230 kcal from fat, with similar protein intake), and faster eating rates with higher energy density increase ad libitum intake.
Cooking fats and heat: Butter, ghee, coconut oil, and suitable animal fats are preferred over industrial seed oils, while moist cooking and moderate browning help limit high-temperature advanced glycation end products (AGEs) and boiling with discarded water reduces soluble oxalates when needed.

Movement, drinks and vitamin D

Post-meal walking: When colder weather reduces daily outdoor walking, a short walk after eating adds movement and helps moderate the post-meal glucose rise.
Beverage nutrition and retention: Whole and skimmed milk contribute protein, minerals, and higher short-term fluid retention than plain water, while mineral water supplies calcium and magnesium that low-mineral tea lacks.
Daylight vs. UVB through glass: Outdoor daylight helps set the circadian clock, whereas ordinary window glass blocks UVB wavelengths and northern winter sunlight supplies too little UVB for skin vitamin D synthesis.
Vitamin D status: Low vitamin D levels have been associated with depressive symptoms, and a 25-hydroxyvitamin D blood test helps assess individual status during winter.

Frequently asked questions

Why do I want more carbohydrates when the days get shorter?

Seasonal eating patterns, shorter daylight, and mood may all play a part. In a 1991 study of 315 adults, participants ate larger meals and consumed more carbohydrates in autumn while reporting greater hunger. In a separate 1990 study of 36 patients with winter depression, carbohydrate intake rose particularly in the afternoon and evening before normalizing with bright-light therapy.

Can I feel hungrier in winter even if I am moving less?

Yes. Hunger and daily physical activity can shift in opposite directions during colder months. The 1991 seasonal food diary study of 315 adults found that participants reported greater hunger in autumn despite eating larger meals, while a 2022 systematic review confirmed that walking and outdoor activity often fall in winter alongside virtually unchanged indoor resting metabolic rates.

What could I look at if cravings keep showing up in the evening?

Compare when evening cravings arrive with the size and timing of your earlier meals, your sleep schedule, and how readily packaged snacks are available. In a 2019 inpatient crossover trial, adults ate roughly 508 more calories per day on an ultra-processed diet than on an unprocessed diet, so notice whether a sit-down meal leaves you comfortably satisfied.

Can a warm meal satisfy a winter craving for comfort food?

Yes. A slow-cooked stew with meat, potatoes, root vegetables, and broth brings together complete protein, digestible carbohydrates, suitable fats, minerals, and fluid, while connective-tissue-rich cuts contribute gelatin and glycine and keeping the broth retains dissolved nutrients. Warm milk with honey, ripe fruit, or orange juice can also pair carbohydrate energy with protein and minerals.

Can sitting by a sunny window help with winter vitamin D?

No for cutaneous vitamin D synthesis, though window light can still give your body clock a daytime signal. Experimental testing shows that ordinary window glass blocks ultraviolet B (UVB) radiation, the wavelengths your skin needs to produce vitamin D3, and northern winter sunlight in cities such as Boston and Edmonton supplies too little UVB even outdoors.