Keto-friendly protein snacks have about 5 g or fewer net carbs (total carbs minus fiber) per serving and at least 6 g of protein, or 10 g+ if it's your main protein. Eggs, cheese, tuna, pork rinds and unsweetened jerky fit easily. Most protein bars do not: the typical bar in our data has about 16 g of net carbs.
Key takeaways
- Whole foods win on carbs. Eggs, cheese, tuna and pork rinds have about 0 to 1.6 g of net carbs per serving, based on USDA FoodData Central (opens in a new tab).
- Bars are the trap. Only about 4% of the 2,035 US Open Food Facts protein bar records we analyzed had 5 g of net carbs or less per serving.
- Jerky is a coin flip. About 49% of the 1,011 jerky and meat snack records we analyzed stayed at or under 5 g net carbs per serving, and half went over 400 mg of sodium.
- Read the whole label. On keto you need calories, protein, fat, carbs, fiber and sodium together, which is how the table below is built.
What makes a snack keto?
A ketogenic diet keeps carbohydrate very low, typically fewer than 20 to 50 g a day, and gets most of its calories from fat, according to Harvard Health Publishing (opens in a new tab). With a budget that small, a single snack can matter. A 20 g bar of net carbs could use the entire day.
We use three filters for this page:
- Net carbs: about 5 g or fewer per serving. This keeps two snacks well inside a 20 to 50 g daily range.
- Protein: at least 6 g per serving, or 10 g+ if it's your main protein until the next meal. Six grams is roughly what one large egg or one cheese stick gives.
- No added sugar where you can avoid it. Sugar in jerky marinades and bar coatings is the most common way a "low-carb" snack stops being one.
How do you calculate net carbs?
Net carbs are total carbohydrate minus dietary fiber, as UCLA Health (opens in a new tab) puts it. Fiber is subtracted because the body cannot easily digest it in the small intestine. Many keto shoppers and brands also subtract sugar alcohols. The same UCLA Health column notes that the FDA "isn't on board" with net carbs, so the number is a convention, not a regulated label term.
Here is a worked example using an ounce of dry-roasted almonds from USDA data: 5.9 g total carbs minus 3.1 g fiber equals 2.8 g net carbs.
Keto protein snacks compared: calories, protein, fat, carbs and sodium
Most keto snack lists give protein and net carbs and stop there. This table shows every number you need to decide, for the same serving. All values are calculated from USDA FoodData Central (opens in a new tab) entries (FDC IDs listed) and rounded.
| Snack (serving) |
Calories |
Protein (g) |
Fat (g) |
Total carbs (g) |
Fiber (g) |
Net carbs (carbs − fiber) (g) |
Sodium (mg) |
Protein per 100 cal |
USDA FDC ID |
| Light tuna, canned in water, drained (3 oz / 85 g) |
73 |
16.5 |
0.8 |
0 |
0 |
0 |
210 |
22.6 g |
173709 |
| Plain pork rinds (1 oz / 28 g) |
152 |
17.2 |
8.8 |
0 |
0 |
0 |
510 |
11.3 g |
167961 |
| Hard-boiled eggs (2 large / 100 g) |
155 |
12.6 |
10.6 |
1.1 |
0 |
1.1 |
124 |
8.1 g |
173424 |
| Hard-boiled egg (1 large / 50 g) |
78 |
6.3 |
5.3 |
0.6 |
0 |
0.6 |
62 |
8.1 g |
173424 |
| String cheese, low-moisture part-skim mozzarella (1 oz / 28 g) |
83 |
6.7 |
5.5 |
1.6 |
0 |
1.6 |
186 |
8.1 g |
171244 |
| Cheddar cheese (1 oz / 28 g) |
114 |
6.5 |
9.5 |
0.7 |
0 |
0.7 |
183 |
5.7 g |
328637 |
| Beef jerky, chopped and formed (1 oz / 28 g) |
115 |
9.3 |
7.2 |
3.1 |
0.5 |
2.6 |
498 |
8.1 g |
167536 |
| Pumpkin seed kernels, roasted, unsalted (1 oz / 28 g) |
161 |
8.3 |
13.7 |
4.1 |
1.8 |
2.3 |
5 |
5.2 g |
170557 |
| Almonds, dry-roasted, unsalted (1 oz / 28 g) |
167 |
5.9 |
14.7 |
5.9 |
3.1 |
2.8 |
1 |
3.5 g |
170158 |
A few things stand out:
- Tuna is the most protein-dense pick at about 22.6 g of protein per 100 calories. It is also very lean, so pair it with mayo, olive oil or avocado if you need the fat for keto.
- Pork rinds have the most protein per ounce of any snack here, with zero carbs, but each ounce brings about 510 mg of sodium.
- Nuts and seeds are keto-friendly but not protein-dense. Almonds give under 4 g of protein per 100 calories because most of their calories come from fat. That is fine on keto, as long as you count the calories.
- Eggs and cheese are the steady middle: about 6 to 7 g of protein, under 2 g of net carbs and fewer than 120 calories per piece or ounce.
For more on the protein-per-calorie metric, see our guide to protein per 100 calories.
Are protein bars keto, and do sugar alcohols count?
Usually not. We looked at 2,035 US protein bar records from Open Food Facts (opens in a new tab) that list a serving size (bars with "protein" in the name or category, or at least 15 g of protein per 100 g). Using label carbs minus fiber, the median bar had about 16 g of net carbs per serving. Only 88 bars, about 4%, came in at 5 g or less.
Bars that do qualify reach low net carbs in two main ways: added fiber and sugar alcohols. Both still count in total carbohydrate on the US label. The FDA's Nutrition Facts guide (opens in a new tab) lists total sugars, dietary fiber and sugar alcohols as parts of Total Carbohydrate, and lets manufacturers list sugar alcohols separately on a voluntary basis. That is why two bars with similar ingredients can advertise very different "net" numbers.
What to check on a keto bar:
- The sugar alcohol line. If a bar lists it, you can see exactly what the brand subtracted. If it does not, the front-of-pack net-carb claim is harder to verify.
- Which sweetener. Sugar alcohols are not all handled the same way by the body, so labels and brands count them differently.
- How much. A Cleveland Clinic dietitian suggests limiting sugar alcohols (opens in a new tab). One observational study, Witkowski and colleagues in Nature Medicine (2023) (opens in a new tab), linked higher blood levels of erythritol, a common keto sweetener, with more cardiovascular events. That is an association, not proof of harm, but it is a reason not to build your day around sweetened bars.
If you want bars anyway, compare them in our protein bars category and read our take on whether protein bars are healthy.
How much hidden sugar and sodium is in jerky?
Jerky and meat sticks look made for keto: dried meat, high protein, shelf-stable. The label tells a mixed story. In our analysis of 1,011 US Open Food Facts records for jerky and meat snacks with serving data:
| Jerky and meat snacks (median or share, per serving) |
Value |
| Typical serving |
28 g (1 oz) |
| Median net carbs |
5.0 g |
| Share with 5 g net carbs or fewer |
49% |
| Share with 2 g net carbs or fewer |
32% |
| Median sodium |
400 mg |
| Share over 400 mg sodium |
50% |
Most of those carbs come from sugar in the marinade: teriyaki, sweet and spicy, and barbecue flavors are the usual culprits. Original, peppered and "zero sugar" varieties are where the keto-friendly products cluster.
Sodium is the other number to watch. The FDA Daily Value for sodium (opens in a new tab) is 2,300 mg, so a median jerky serving uses about 17% of it, and a pork-rind ounce about 22%. Harvard Health's high-protein snack guide (opens in a new tab) recommends jerky but adds the same caution: keep an eye on sodium. If you snack on cured meats more than once a day, balance them with lower-sodium picks like eggs, plain nuts or unsalted pumpkin seeds.
How to pick keto jerky:
- 2 g of carbs or fewer per ounce and no sugar in the first few ingredients.
- At least 9 g of protein per ounce, which plain beef jerky reaches easily.
- Under about 400 mg of sodium per serving when you can find it.
Browse options in jerky and meat snacks.
Which whole-food keto snacks have protein?
You do not need a specialty product to snack on keto. These whole-food combinations stay under about 5 g of net carbs, using the USDA numbers above:
- Two hard-boiled eggs with salt and pepper: about 12.6 g protein and 1.1 g net carbs.
- Tuna salad lettuce cups: a 3-ounce pouch or can of light tuna mixed with mayo, about 16.5 g protein. Add the mayo's calories and fat to your count.
- Cheese and almonds: one string cheese plus half an ounce of almonds, about 9.6 g protein and 3 g net carbs.
- Pork rind "nachos": an ounce of pork rinds with melted cheddar, about 24 g protein and under 1 g net carbs, but close to 700 mg of sodium.
- Pumpkin seeds by the handful: an ounce gives about 8 g of protein, 2.3 g net carbs and almost no sodium if you choose unsalted.
Dairy fans can compare cheeses and yogurts in our dairy category. Plain, full-fat Greek yogurt can work in small portions, but check the label, since flavored cups often carry added sugar.
How much protein should a keto snack have?
Enough to be worth it, not so much that it crowds out fat. Harvard Health notes that too much protein can interfere with ketosis (opens in a new tab), and its sample 2,000-calorie keto day includes about 75 g of protein. Against that, a 6 to 15 g snack is modest. Harvard's snack guide (opens in a new tab) suggests at least 5 g of protein for a snack to count as high-protein, and every item in our table clears that bar.
If you are not strictly keto and just want fewer carbs, our best protein snacks and low-sugar protein snacks pages use wider filters.
Is keto right for you?
Keto is not right for everyone. Harvard Health advises talking to a doctor and a registered dietitian before starting a ketogenic diet, and lists risks including nutrient gaps, constipation and strain on the liver and kidneys. If you take medication for diabetes or blood pressure, talk to your clinician first, since cutting carbs sharply can change what you need. Our guide to high-protein snacks for diabetics covers a less restrictive approach.
How did we pick and calculate these numbers?
- Whole-food numbers come from USDA FoodData Central, scaled from per-100 g values to the serving shown and rounded.
- Packaged-snack statistics come from our analysis of 23,236 cleaned US Open Food Facts records (2,035 protein bars and 1,011 jerky and meat snacks with a listed serving size), using each product's listed serving size. Net carbs are label total carbohydrate minus fiber. Open Food Facts rarely records sugar alcohols separately, so bars that list them may show lower net carbs on the package than in our figures.
- No ratings or reviews. We do not score snacks by taste, and nothing on this page is sponsored placement.
- Labels change. Always check the package in your hand. For our full methodology, see How we rank snacks.
