Is Apples Keto? Carbs, Net Carbs & Verdict

Is apples keto? No — a medium apple has about 21g net carbs, nearly a full day's keto budget. See carbs per serving, portion tips, and low-carb swaps.

Jordan Lee
Jordan Lee

Head of Nutrition · June 20, 2026 · 5 min read

Is Apples Keto? Carbs, Net Carbs & Verdict

No, apples are not keto-friendly. A medium apple (about 182g) carries roughly 25g total carbs, 4.4g fiber, and 21g net carbs — almost an entire day's worth of carbs on keto in a single piece of fruit. Per 100g, apples run about 11.4g net carbs (13.8g total carbs minus 2.4g fiber). A standard keto diet caps you at 20-50g net carbs per day, so one medium apple can use up or blow past a strict 20g budget on its own. A few thin slices can squeak in, but a whole apple does not fit a ketogenic diet.

Apples have a wholesome reputation, and they genuinely are nutritious — fiber, vitamin C, and antioxidants. But "healthy" and "keto" aren't the same thing. Apples are mostly natural sugar, and on a diet built around staying under 20-50g of net carbs, that sugar adds up fast. Here's exactly where apples land and how to handle the craving without leaving ketosis.

How many carbs are in apples?

Net carbs = total carbs minus fiber. Apples are fairly fibrous for a fruit, but they're still sugar-dense. Here's the breakdown for a raw apple with skin:

  • Per 100g (about 3.5 oz): ~13.8g total carbs, ~2.4g fiber, ~11.4g net carbs
  • Small apple (~150g): ~16g net carbs
  • Medium apple (~182g): ~21g net carbs
  • Large apple (~223g): ~27g net carbs
  • One cup sliced (~110g): ~12.5g net carbs

The fiber helps a little, but not enough to rescue apples for keto. Even subtracting all the fiber, a medium apple still spends most or all of a strict daily carb allowance.

Is apples keto-friendly?

Not really. The problem is the total carb load per serving. A keto diet generally holds you to 20-50g of net carbs a day, and a single medium apple delivers around 21g of that — before you've eaten anything else. On a strict 20g day, one apple effectively is your entire carb budget.

Compare that to genuinely keto-friendly fruits like raspberries (~5.5g net carbs per 100g) or avocado (~2g net carbs per 100g), and apples sit firmly in the "occasional, tiny portion" tier. If you're early in keto or trying to stay deep in ketosis, it's safest to skip whole apples and reach for a lower-carb option instead.

How much apples can you eat on keto?

A whole apple won't fit most keto days, but a small slice can. Here's roughly what different portions cost:

Apple serving Approx. weight Net carbs Fits keto?
2-3 thin slices ~20g ~2.3g Yes, easily
4-5 thin slices ~30g ~3.4g Yes, if budgeted
¼ small apple ~40g ~4.6g Tight, but possible
½ medium apple ~90g ~10.5g Risky on a 20g day
1 small apple ~150g ~16g Most of a 20g day
1 medium apple ~182g ~21g No
1 large apple ~223g ~27g No

The takeaway: think slices, not apples. A few thin slices over yogurt or with cheese can satisfy the craving for 3-4g of net carbs. Once you reach half an apple or more, you're spending carbs you'll likely want elsewhere.

What about apple juice, dried apple, and applesauce?

These are worse than fresh apples — sometimes far worse:

  • Apple juice — ~26g net carbs per cup (8 oz), with no fiber to soften the blow. It hits your blood sugar like liquid candy. Avoid it on keto.
  • Dried apple — drying removes water and concentrates the sugar, landing around 50-60g net carbs per 100g. A small handful can blow your whole day.
  • Applesauce (sweetened) — roughly 20-22g net carbs per half cup. Even unsweetened applesauce runs ~12-13g net carbs per half cup.
  • Apple chips — often 18-20g+ net carbs per 1 oz serving, depending on added sugar.

The pattern is the same as with any fruit: the more concentrated or processed it is, the more carbs per bite. Whole, fresh apple in a tiny portion is the only form worth considering on keto.

Best low-carb alternatives to apples

When you want that crisp, sweet-tart fruit hit without the carb hit, swap the apple for one of these:

Alternative Net carbs (per 100g) Why it works
Raspberries ~5.5g Sweet-tart, high fiber, true keto fruit
Blackberries ~5g Lowest-carb common berry
Strawberries (a few) ~5.5g Naturally sweet, easy to portion
Granny Smith apple (small slice) ~9-10g Lowest-carb apple if you must
Jicama sticks ~5g Crunchy apple-like texture, very low sugar
Cucumber + lime + a pinch of cinnamon ~3g Fresh, crisp, near-zero sugar

A small bowl of berries scratches the same itch as an apple for a quarter of the carbs. If it's the crunch you miss, jicama or chilled cucumber gives you that snap without the sugar.

Know the carbs before you bite

Apples are a perfect example of a food that feels healthy but quietly torpedoes a keto day. The difference between a few slices (3-4g) and a whole medium apple (21g) is the difference between staying in ketosis and spending your entire budget on one snack. CarbMeNot uses AI-powered food recognition to scan an apple — or any meal or label — and break down net carbs instantly, so you can portion it precisely instead of guessing. Browse the fruit database to compare options, track apples in the app, and let CarbMeNot keep your running total honest.

Key takeaways

  • Apples are not keto-friendly at about 21g net carbs for a medium apple — nearly a full day's budget on a strict 20g plan.
  • Per 100g, apples have ~11.4g net carbs (13.8g total carbs minus 2.4g fiber).
  • A few thin slices (~30g, ~3-4g net carbs) can fit if you budget for them; a whole apple cannot.
  • Avoid apple juice, dried apple, and applesauce — they pack far more sugar per serving.
  • Swap apples for berries, jicama, or cucumber to satisfy the craving for a fraction of the carbs, and log every portion in CarbMeNot.

Frequently asked questions

Is apples keto?
No, apples are not keto-friendly. A medium apple has about 21g of net carbs, which can use up nearly your entire daily keto budget of 20-50g in a single piece of fruit. A few thin slices can fit, but a whole apple usually doesn't.
How many carbs are in apples?
A medium apple (about 182g) has roughly 25g total carbs, 4.4g fiber, and 21g net carbs. Per 100g, apples have about 13.8g total carbs, 2.4g fiber, and 11.4g net carbs. A small apple is around 16g net carbs and a large one can top 27g.
Can you eat a little bit of apple on keto?
Yes, in very small amounts. About 4-5 thin slices (roughly 30g) is around 3-4g net carbs, which can fit a strict 20g day if you budget for it. Stick to a few slices rather than a whole apple, and avoid dried apple or apple juice entirely.
What is the lowest-carb apple?
Granny Smith apples are the lowest-carb choice because they are tart and less sweet, at roughly 9-10g net carbs per 100g. They are still high for keto, but a small portion costs fewer carbs than a sweet Fuji or Gala apple.

Sources

  1. USDA FoodData Central
  2. Harvard T.H. Chan School of Public Health — Carbohydrates and Blood Sugar

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