
The ketogenic diet is a low-carbohydrate method of eating that aims to reduce carbohydrate intake so that the body enters a state of ketosis, where it begins to burn its own fat for energy. While the amount of daily net carbohydrates one can eat varies, most people on keto should consume between 20 and 50 grams of net carbs per day. Popcorn is a starchy vegetable that is high in fiber and net carbs, and its keto-friendliness depends on the type of popcorn and the diet followed. Movie theater, kettle corn, and microwave popcorn are typically high in carbs and unhealthy additives and should be avoided on keto. However, air-popped popcorn or popcorn made with healthy fats like coconut oil or ghee in moderate servings can be considered keto-friendly. Smartfood White Cheddar Popcorn, a popular pre-popped variety, is high in net carbs and should be limited or avoided on keto.
| Characteristics | Values |
|---|---|
| Carbohydrates | High |
| Net carbs | 39.29g of net carbs per 100g serving |
| Total carbs | 9g total carbs per package |
| Total carbs | 16.5g total carbs per 2 cups |
| Fat | 2.5g fat per package |
| Fat | 11.7g fat per 2 cups |
| Protein | 2g protein per package |
| Protein | 3.3g protein per 2 cups |
| Calories | 70 calories per package |
| Calories | 179 calories per 2 cups |
| Healthy alternative | Air-popped popcorn |
| Popcorn popped with a healthy fat source like coconut oil or ghee |
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What You'll Learn

Smartfood White Cheddar Popcorn nutritional value
Smartfood White Cheddar Popcorn is not recommended for those on a keto diet because it is high in net carbs, with 39.29g of net carbs per 100g serving. To maintain ketosis, it is recommended to limit daily net carb intake to 20-30g.
A closer look at the nutritional value of Smartfood White Cheddar Popcorn reveals that it is air-popped and made with 100% whole grain corn. A 6.75 oz package typically contains 9g total carbs, 7g net carbs, 2.5g fat, 2g protein, and 70 calories. The product also contains highly refined canola oil, corn oil, and sunflower oil, which are prone to oxidation and may cause inflammation in the body.
The popcorn has a creamy and mild real white cheddar cheese taste. However, it's important to note that the refining process for the oils used in this product involves high heat and chemicals, stripping out nutrients and potentially introducing harmful substances.
As a result, while Smartfood White Cheddar Popcorn may be a tasty snack, it is not the healthiest option, especially for those on a keto diet or seeking anti-inflammatory benefits.
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Ketogenic diet and carbohydrates
The Ketogenic diet is a low-carbohydrate method of eating. The aim is to reduce carbohydrate intake so that the body enters a state of ketosis, where it uses its own fat as an energy source. This means that the body's typical energy source, glucose (found in carbohydrates), is replaced by ketones (found in fat). The number of daily net carbohydrates that can be consumed varies according to one's activity levels and body composition, but most people on keto should eat between 20 and 50 grams of net carbohydrates each day.
Popcorn is made from corn kernels, which are starchy and high in net carbs. Whether or not popcorn is suitable for those on a ketogenic diet depends on the type of popcorn and the diet followed. Fresh, air-popped popcorn is low in calories, high in fibre, and filled with antioxidants. However, movie theatre popcorn is often loaded with saturated fat and calories, and mass-produced popcorn such as microwave popcorn tends to be high in carbohydrates and unhealthy additives.
Smartfood White Cheddar Popcorn, for example, is considered to be very high in net carbs, with 39.29 grams of net carbs per 100-gram serving. Other sources give the net carb count for a package or a 2-cup serving as 7 grams and 13.4 grams, respectively. These values are well above the recommended daily net carb intake of 20 to 30 grams for those on the keto diet.
To make popcorn a keto-friendly snack, one can opt for air-popped popcorn or popcorn popped with healthy fats like coconut oil or ghee, while being mindful of portion sizes.
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Air-popped popcorn and healthy fats
Popcorn is a whole grain food that is high in important nutrients, including vitamins, minerals, and very high amounts of fibre. It is also a good source of polyphenols, which are antioxidants that protect our cells from damage by free radicals.
Air-popped popcorn is a healthy, low-calorie snack. It is naturally low in calories and has a low energy density, making it a weight-loss-friendly food. Air-popped popcorn with no oil provides the best health benefits. People can add healthy fats to their air-popped popcorn, such as polyunsaturated fats like avocado oil, to make it more flavourful.
However, the way popcorn is prepared can greatly impact its nutritional quality. For example, pre-packaged microwave popcorn is often lined with a chemical called perfluorooctanoic acid (PFOA), which has been associated with health problems such as ADHD, low birth weight, and thyroid issues. It may also contain diacetyl, a chemical found in artificial butter flavouring that has been linked to lung disease in animal studies.
Additionally, commercially prepared popcorn varieties can be extremely high in calories and unhealthy ingredients, such as sugar and salt, which can lead to weight gain. Therefore, it is recommended to eat popcorn plain or with small amounts of healthy fats and salt to maximise its health benefits.
Smartfood White Cheddar Popcorn, for example, should be avoided on a keto diet because it is very high in net carbs (39.29g of net carbs per 100g serving). It is important to limit net carb consumption to 20-30g per day to stay in ketosis. Instead, individuals on a keto diet can opt for other store-bought snacks that are low in net carbs.
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Movie theatre popcorn
Popcorn is a popular movie theatre snack, and it is possible to enjoy it while following a keto diet, but there are some important things to keep in mind. Firstly, moderation is key. While popcorn is a relatively low-carb option compared to other movie snacks, a one-cup serving of air-popped popcorn has 6 grams of carbs and 1 gram of fibre, resulting in 5 grams of net carbs. This is significantly lower than the 39.29 grams of net carbs per 100 grams of Smartfood White Cheddar Popcorn, which is best avoided on a keto diet.
When it comes to movie theatre popcorn, it's important to be mindful of the toppings. Butter may be acceptable in moderation, but sugary syrups and kettle corn should be skipped. Additionally, the "butter" used in movie theatres is often just flavoured oil, typically soybean or palm oil, which may not align with keto-friendly oil choices. Coconut oil, for example, is a better option as it provides healthy fats.
Some people on the keto diet have shared their experiences of enjoying movie theatre popcorn without any negative effects on their ketosis. However, it is important to note that individual results may vary, and it is always a good idea to monitor your glucose levels and ketone levels using reliable methods.
To stay within keto guidelines, it is recommended to limit your net carb consumption to 20-30 grams per day. This means that a small serving of movie theatre popcorn, without excessive toppings, can be a treat you can enjoy in moderation while sticking to your keto diet.
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Low-carb keto snacks
Smartfood White Cheddar Popcorn should be avoided on a keto diet because it is very high in net carbs, with 39.29g of net carbs per 100g serving. To stay in ketosis, it is important to limit your daily net carb consumption to 20-30g. However, there are plenty of delicious keto-friendly snacks available that are both nutritious and flavourful.
- Rosemary keto crackers or keto tortilla chips with dips like smoked salmon, bacon spinach, or smoked trout
- Mini frittatas or egg muffins, which are easy to prepare and can be customised with your choice of low-carb ingredients
- Bone broth, which can be made in large batches and frozen for later
- Keto-friendly smoothies made with coconut, avocado, and nut butter, along with low-carb fruits like berries and nutrient-dense veggies
- Nuts like peanuts and heart-healthy options, which are high in protein, fat, and fiber
- Keto sushi rolls with nori seaweed sheets, chopped veggies, and fish or smoked fish
- Air fryer kale chips, which are a healthy alternative to potato chips and can be customised with different herbs and spices
- BLT egglets, a portable and tasty snack that combines elements of a BLT sandwich and egg salad
- Keto cookie dough bars, which can satisfy your sweet tooth without crashing your diet
These snacks can help you stay within the carb limits of a ketogenic diet while still enjoying a variety of flavours and nutrients.
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Frequently asked questions
No, Smartfood Popcorn is not Keto-friendly. It is very high in net carbs, with 39.29g of net carbs per 100g serving.
Smartfood White Cheddar Popcorn is also not recommended for a keto diet due to its high net carb content. A 2-cup serving contains 13.4g net carbs.
This flavour of Smartfood Popcorn is still high in net carbs, with 7g net carbs per package. While it is possible to eat this flavour occasionally, it is generally not recommended for a keto diet.
Air-popped popcorn or popcorn cooked with healthy fats like coconut oil or ghee in moderate portions can be considered keto-friendly.
Movie theatre popcorn, kettle corn, and microwave popcorn are typically high in carbohydrates and unhealthy additives, so they should be avoided on a keto diet.











































