Turtles are famously hardy animals that can survive for long stretches on very little. But how long can a turtle go without eating? The answer comes down to special survival adaptations that turtles (and other reptiles) have evolved to endure extreme conditions.
For pet turtle owners, understanding the resilience of these creatures—from tiny hatchlings to adults—is crucial to keeping them healthy.
For example, during extended periods of cold winter temperatures, most turtles enter brumation. Brumation is a prolonged state of inactivity (comparable to hibernation in mammals) that reptiles and amphibians use to survive the cold.
Another adaptation is aestivation, a similar dormancy but during extremely hot and dry periods. In aestivation, a turtle slows down to avoid overexertion when outside temperatures become dangerously high.
Both aestivation and brumation allow turtles to survive without food for extended periods. Brumation is the most extreme case—during brumation, a turtle can go without eating for several months!
However, very specific environmental cues are needed to trigger brumation or aestivation. When not in one of these dormant states, a turtle deprived of food can die of starvation in just a few weeks.
Now, let’s take a closer look at how brumation works and what your turtle’s regular feeding habits should be. Turtles might be able to go a long time without food, but that doesn’t mean it’s good for them!
Quick Reference: How long turtles can survive without eating under different conditions:
| Condition | Approx. Time Without Food |
|---|---|
| Active (non-brumating) adult | A few weeks (possibly up to 2 months in extreme cases) |
| During brumation (hibernation) | 10–16 weeks (about 2–4 months) |
| Hatchling or juvenile | 1–2 weeks at most (very young turtles need frequent feeding) |
Table of Contents
- Duration a Turtle Can Survive Without Food
- Feeding Your Turtle When You Aren’t Around
- Turtle Feeding Frequency
- Food Amount to Offer
- Frequently Asked Questions
Duration a Turtle Can Survive Without Food
No turtle should go more than a few days without eating under normal circumstances. Hatchlings and juveniles need to eat daily, and healthy adults should be fed about every other day. That said, a brumating turtle can survive for several months without food. Unfortunately, a neglected pet turtle might manage to live for several weeks with no food (at great cost to its health).
An otherwise healthy adult turtle might physically survive for a few months without food if it absolutely had to. This is just an approximation—actual survival time varies with the individual turtle and environmental conditions.
However, unless a turtle is brumating, going without food for that long is very dangerous. A turtle deprived of nourishment will eventually succumb to starvation and other health complications.
How Long Can a Brumating Turtle Survive Without Food
Brumation is the reptile version of hibernation—a state of dormancy during extended periods of cold. Pet owners with species like the red-eared slider (Trachemys scripta elegans) should be aware of how brumation affects their turtle. (Many people casually refer to this as “hibernation,” but the correct term for reptiles is brumation.)
During brumation, turtles stop eating entirely and usually bury themselves under mud or debris at the bottom of their pond or tank.
In this dormant state, the turtle’s metabolism slows to a crawl. If there is a brief warm spell, the turtle might wake and eat a small amount, but it will return to dormancy as temperatures drop again. This survival strategy is so effective that brumating turtles can even survive underwater beneath a layer of ice!
Smaller turtles (and young turtles) tend to brumate for a shorter period—often 8 to 10 weeks or less. Larger adult turtles in brumation may stay dormant for around 12 to 14 weeks. When brumation ends, it can take a week or two before the turtle starts eating normally again, although this varies with each individual.
In total, a turtle in brumation can go without food for roughly 10 to 16 weeks (about 2 to 4 months).
Interestingly, undergoing a brumation cycle appears to improve fertility in some turtles. Breeders often induce a period of brumation before breeding season because it can increase the chances of successful reproduction.
Unless you are actively breeding turtles, you should not encourage brumation in captivity. It may be a natural winter survival method, but it is very taxing on the turtle’s body and can be dangerous if not done correctly.
Seasons in Which Brumation Occurs
Brumation happens during the cold part of the year. In temperate regions this typically means fall and winter (approximately October through April). The drop in temperature in the turtle’s environment is what triggers brumation.
When the water or ambient temperature falls below about 60°F (16°C), many turtles prepare to brumate. The ideal range for brumation is around 41°F (5°C). If temperatures drop under 35°F (2°C), the turtle may not survive (even if it was healthy to start).
As the temperature gets low, the turtle will stop eating to empty its digestive tract in preparation for brumation. Brumation lasts a long time, and any food left undigested in the gut could rot and cause serious infections. This natural fasting is why a turtle stops feeding in the days or weeks before it goes into brumation.
To brumate, a turtle will seek out a safe spot. Aquatic turtles usually burrow into the mud at the bottom of a pond or tank. Terrestrial turtles or those without mud may simply hide under leaves, logs, or in burrows.
Like other cold-blooded animals, a turtle’s metabolism drops dramatically during brumation. The turtle can stay alive for weeks on its energy reserves, needing no new food.
Amazingly, some aquatic turtles can also absorb oxygen from the water during brumation. While they do occasionally surface for air, many species can “breathe” underwater through specialized tissues in their throat and cloaca (often nicknamed butt-breathing). This helps them remain underwater for months.
In outdoor ponds, an ice layer often forms on the surface in winter, which actually helps insulate the water below. Even if the air above is freezing, the water at the bottom of a frozen pond typically stays just above freezing.
In fact, most frozen ponds still have water around 39–40°F (4°C) at the bottom. Cold water is densest at that temperature, so it sinks, and the warmest layer in winter is usually at the bottom. This environment allows turtles to brumate underwater without freezing.
Dangers of Brumation
Brumation is not without risks. If it gets too cold, a brumating turtle can literally freeze to death. If it gets too warm during brumation, the turtle’s metabolism may speed up too much and the turtle could starve or dehydrate. Also, while brumating, turtles are very sluggish and vulnerable to predators (such as raccoons or foxes) since they cannot react or escape quickly.
Turtles also lose body weight during brumation—typically around 1% of their body weight per month, which can add up to about 5–7% loss after a full brumation period. Losing more than this amount of weight can be dangerous and indicate the turtle is not doing well.
Because of the dangers, only healthy adult turtles (usually over 4–5 years old) should be allowed to brumate, and only if necessary (for breeding or because they live outdoors naturally). Never attempt to brumate a sick turtle or a hatchling/juvenile—there’s a high chance they will not survive.
While brumation can help regulate a turtle’s weight and is beneficial for breeding, it’s not something you should force otherwise. In terms of food, brumation is the sole reason a turtle can go as long as 2–4 months without eating.
Feeding Your Turtle When You Aren’t Around
Although turtles can survive for a while without food, it’s not humane to leave them unfed. (After all, humans can survive for over a month without eating, but we certainly wouldn’t want to!) Your turtle won’t vocalize when it’s hungry, so you must remember to feed it on schedule.
To keep your turtle healthy, establish a consistent feeding schedule and stick to it. If you plan to be away or know you’re forgetful, you’ll need a strategy to ensure your turtle is fed regularly.
For example, if you go on vacation, arrange for someone to feed your turtle every couple of days while you’re gone. Turtles don’t need daily attention like dogs or cats, but they do need their meals on time and their habitat maintained.
One solution is to use an automatic turtle feeder device that dispenses food on a timer. (All Turtles has reviewed some of the best automatic turtle feeders if you need recommendations.) These machines can drop turtle pellets into the tank at set times, so your pet stays fed even if you aren’t home.
It is essential that hatchlings and young turtles eat every day, and adults eat about 3 to 4 times per week. If you’re going to be away longer than a day or two, make sure someone or something is in place to feed your turtle.
If you have a friend or neighbor help, choose someone who knows a bit about turtles (if possible). They can also help by checking the tank water and maybe changing it if it gets dirty. Leave very clear written instructions about how much to feed and what to do, and show them beforehand if you can.
Depending on the length of your trip, they may need to clean the tank or replace the water once or twice. For land-dwelling turtles (like box turtles), make sure to leave fresh water in a shallow dish for them, and have your helper refill it daily.
You can automate many aspects of turtle care. Set your tank’s UV light and heat lamps on automatic timers to simulate day/night cycles. Use an automatic feeder (like the Zoo Med Turtlematic or Petbank Automatic Feeder) for daily feeding. Then your helper mainly needs to ensure the devices are working and to top off food and water as needed until you return.
Modern automatic feeders can reliably dispense pellets on schedule. Your friend just needs to verify that your turtle is eating and that the tank stays clean and safe.
Turtle Feeding Frequency
We’ve talked about how long turtles can last without food, but how often should you be feeding your turtle in the first place? The ideal feeding frequency depends on the turtle’s age, size, and species, but here are some general rules of thumb.
Feeding too often (overfeeding) or too rarely (underfeeding) can both harm your turtle. Pay attention to how your turtle behaves at meal times. A sudden change in appetite or enthusiasm for food is often an early sign that something may be wrong health-wise.
Keep your turtle on a regular feeding routine. Turtles are creatures of habit and will come to expect food at their usual times. A consistent schedule also makes it easier to notice changes in their eating patterns.
As a broad guideline, hatchling and juvenile turtles (young turtles that are still growing) should be fed once a day. Most turtles reach maturity around 5–7 years old (this varies by species and sex). Once a turtle is mature, you can feed it less frequently.
Adult turtles can be fed roughly once every two days. Some may even eat only 2–3 times a week. Use your turtle’s behavior as a guide: if it eagerly eats every time, feeding every other day is fine; if it sometimes ignores food, you might scale back a bit.
Conversely, if your adult turtle seems hungry more often (begging or searching for food), you could try offering smaller meals more frequently. Just be careful not to overfeed, as obesity can be a problem in pet turtles.
As turtles get older, their metabolism slows and they may naturally eat less often. An older adult turtle might only want to eat every three days or so.
Always observe your turtle’s eating habits and adjust the feeding schedule and portions accordingly to keep it in good condition.
Food Amount to Offer
Besides frequency, you need to determine how much food to give your turtle. Pet turtles often have a tendency to overeat if given the chance, so portion control is important.
Every component of the diet counts: protein, fat, sugar, and fiber all need to be in balance. For instance, fruit is high in sugar and should only be a small part of a turtle’s diet (as an occasional treat).
Generally, protein should make up anywhere from about 30% up to 70% of a turtle’s diet, depending on the species and age. Young turtles tend to need more protein (they are more carnivorous), whereas adult turtles eat relatively more plant matter.
As a simple rule, a hatchling’s diet can be about half protein (animal-based foods) and half plant material (greens and veggies). By adulthood, the diet should shift to maybe 30% protein and 70% plant-based.
Commercial turtle pellets are a handy way to provide a base level of nutrition, since they are formulated with vitamins and minerals. Feel free to use pellets as part of the diet, but always supplement with fresh foods for variety.
A good practice is to feed as much as the turtle can eat in roughly 15–20 minutes, and then stop. This helps prevent overfeeding.
After the turtle has had its meal, promptly remove any uneaten food from the habitat. Old food can decompose and foul the water or enclosure, leading to bad smells and bacteria.
Some owners prefer to feed their aquatic turtles in a separate tub or container, which keeps the main tank cleaner. This isn’t strictly necessary, but it can make tank maintenance easier.
Foods Turtles Eat
Turtles are generally omnivores or carnivores, while tortoises (which are a type of turtle) are primarily herbivores. In other words, most pet turtles will eat a mix of animal and plant foods, whereas tortoises mostly eat plants.
In casual use, the word “turtle” usually refers to aquatic and semi-aquatic turtles (including species like sliders, cooters, map turtles, snapping turtles, box turtles, etc.). All of these turtles have similar broad diets, though the exact preference for meat vs. plants varies by species.
Some turtle species are very carnivorous and need a higher proportion of animal protein. Others are more balanced omnivores that enjoy both animal and plant foods. You should learn the specific dietary needs of your turtle’s species to provide the right balance.
Keep in mind that baby turtles have different dietary needs than adults. (We have a separate guide on what baby turtles eat that you can refer to for details.)
Commercial Turtle Formula
Prepared commercial foods are an excellent staple for aquatic turtles. These include floating pellets, sticks, or gels made for turtles. They are convenient, have a long shelf life, and contain a range of nutrients.
If you have access to good commercial turtle diets, they can make up a significant portion of your turtle’s meals—along with fresh vegetables, aquatic plants, and occasional live prey.
Popular commercial turtle food brands include:
- Mazuri Freshwater Turtle Formula
- Zoo Med Aquatic Turtle Food (Growth Formula)
- Tetra ReptoMin Floating Food Sticks
- Exo Terra Aquatic Turtle Hatchling Food
- Tetrafauna PRO ReptoMin Baby Turtle Formula
- Nutrafin Max Gammarus Pellets
- Rep-Cal Box Turtle Food
Animal Matter To Feed Your Turtle
Turtles love to eat other animals in their environment. In the wild they will catch insects, worms, fish, and even smaller turtles if given the chance. They are opportunistic predators and scavengers.
As a pet owner, it’s your job to ensure they only get safe, nutritious animal foods. Avoid feeding any very fatty meats or anything seasoned/oily. Also avoid any dairy products (turtles cannot digest dairy).
Great protein sources for turtles include various worms (earthworms, red worms, bloodworms, blackworms), insects (crickets, locusts, roaches, mealworms, superworms, etc.), and other invertebrates. Many turtles will also eat small fish—feeder guppies, minnows, or mosquito fish can be offered occasionally.
Avoid feeding raw supermarket meat or fatty cuts to turtles, as these are not nutritionally balanced and can spoil the water quickly. Also absolutely avoid processed meats (like bacon, sausage, or hot dogs) and anything with added salt or seasoning. If you want to treat your turtle to meat, plain boiled lean chicken or turkey (unseasoned) is a safer option in small amounts.
Plant Matter To Feed Your Turtle
Plant foods are the other critical half of a turtle’s diet (for omnivorous species). You should provide a variety of leafy greens and vegetables that are rich in fiber and vitamins. For most turtles, plant matter should make up roughly 50–70% of the diet by volume.
Be careful to only feed non-toxic plants. Never give houseplants that might be poisonous. For example, do not feed parts of avocado, tobacco, potato, or tomato plants (these are toxic). Also avoid irritating plants like poison ivy. And of course, do not feed any processed human foods like bread, pasta, or candy—these have no place in a turtle’s diet.
Healthy greens and veggies you can offer include romaine lettuce, red leaf or green leaf lettuce, dandelion greens and flowers, collard greens, mustard greens, turnip greens, endive, escarole, parsley, squash, carrots, green beans, and a little bit of spinach (sparingly). Even edible succulents like prickly pear cactus pads or aloe can be nibbled on.
Turtles also enjoy many aquatic plants. Safe options include duckweed, water lettuce, water hyacinth, frogbit, hornwort, pondweed, and Anacharis (waterweed). If you have live plants in the tank, there’s a good chance your turtle will munch on them.
For fruit, stick to small portions and occasional treats. Suitable fruits include berries (strawberries, blueberries, blackberries, raspberries), melon (cantaloupe, honeydew), apples, pears, bananas, and papaya. Fruit should be given once in a while because it has a lot of sugar.
Feeding can get messy. Food scraps may end up hidden in the tank water or gravel. Make sure to clean your turtle’s tank regularly to remove leftovers and keep the environment healthy.
Frequently Asked Questions
How often do turtles need to eat?
Hatchlings and juveniles should eat every day to support their growth. Adult turtles can be fed once every two or three days. As turtles age and their metabolism slows, they generally eat less frequently. Ultimately, adjust feeding to the individual turtle’s needs.
Do turtles get hungry fast?
Not exactly. Turtles have slow metabolisms and can go days without food, so they don’t get “hungry” as often as a mammal might. However, turtles are opportunistic feeders and will beg for food whenever they see a chance. They will eat whenever food is available, as this is a survival instinct to store energy for times when food is scarce (such as winter). So while they might always act hungry, it doesn’t mean they need to eat constantly.
What happens if I forget to feed my turtle?
If it’s just one day, a healthy turtle will be fine. If you forget for multiple days, the turtle will start to become weak and stressed. In a warm tank (where the turtle’s metabolism is active), going without food for a week could lead to serious health issues or even starvation. Always do your best to feed your turtle on schedule. If you are prone to forgetting, use reminders or automatic feeders to avoid missing meals.
How do you know when a turtle is hungry?
It’s hard to know for sure. Most turtles will act hungry all the time, approaching you or begging whenever you come near, even if they just ate. This is normal behavior and doesn’t necessarily mean they are starving. It’s best to stick to a feeding schedule rather than feeding on demand. If your turtle is eagerly eating everything at its scheduled meals, that’s a good sign you’re feeding the right amount. If it leaves food uneaten, you might be offering too much or too often.
Conclusion
So, how long can a turtle go without eating? In normal everyday conditions, a turtle should not go more than a few days without food. Baby turtles need daily feeding, and adult turtles should be fed about every other day (depending on the species and individual).
In extraordinary conditions like brumation, turtles can survive for months without food. This ability helps them get through winter when it’s cold and food isn’t available. However, you should not intentionally deprive your pet turtle of food just because they can endure it.
Always aim to feed your turtle on a regular, healthy schedule. Providing proper nutrition on time is one of the most important parts of turtle care. Your turtle may be tough, but it will certainly be happier and healthier with regular meals!
Sources
- Texas A&M University, Veterinary Medicine – Turtle Brumation: The Benefits & Dangers of the Hibernation Cycle (2021).
- The Orianne Society – Trapped Under The Ice: How Wood Turtles Survive the Winter (2020).
- VCA Animal Hospitals – Feeding Box Turtles (Care Guide).
- Arizona Exotic Animal Hospital – Box Turtles: Common Problems.