
Green plantains are rich in resistant starch, a form of fibre that supports gut health and blood sugar control. While green plantains are high in carbs, the resistant starch buffers the impact of these carbs on blood sugar. Cooking or frying green plantains converts their starches into sugars, which can impact blood glucose and insulin levels and interfere with ketosis. Eating small amounts of raw green plantain won't push you out of ketosis, but most people find raw green plantains unpalatable.
| Characteristics | Values |
|---|---|
| Carbohydrates | One cup of fried green plantains (approximately 118g) contains 58g of carbohydrates. |
| Calories | One cup of fried green plantains contains 365 calories. Another source states 407 calories. |
| Protein | Fried green plantains contain 1.8g of protein per cup. |
| Fat | Fried green plantains contain 13.9g of fat per cup. Another source states 17.2g. |
| Fiber | Fried green plantains contain 4.1g of fiber per cup. |
| Sugar | Fried green plantains contain 4.3g of sugar per cup. |
| Vitamins | Green plantains are a source of vitamin B6 and vitamin C in their uncooked form. |
| Resistant Starch | Green plantains are a source of resistant starch, which is beneficial for gut health and blood sugar control. |
| Ketogenic Diet | Green plantains may be consumed in small amounts on a ketogenic diet, but they are high in carbohydrates and can impact blood glucose and insulin levels. |
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What You'll Learn
- Green plantains are a good source of resistant starch, which is beneficial for gut health and blood sugar control
- Cooking green plantains converts their starches into sugar, which can impact blood glucose and insulin levels
- Green plantains are high in carbs, which can kick you out of ketosis
- Green plantains are a good source of potassium and magnesium
- Alternatives to plantains on a keto diet include avocados, salmon, and green leafy vegetables, and other keto recipes

Green plantains are a good source of resistant starch, which is beneficial for gut health and blood sugar control
Green plantains are a good source of resistant starch, which has several health benefits. Resistant starch is a type of carbohydrate that is not broken down and absorbed in the small intestine. Instead, it passes into the colon relatively intact, where it serves as a fuel source for the friendly bacteria in the gut. This means that resistant starch does not impact blood sugar levels and helps keep insulin levels low.
Green plantains are high in resistant starch, which slows down digestion and the release of sugar into the blood. Eating small amounts of raw green plantain will not affect ketosis. However, cooking or frying green plantains converts their starches into easily digestible carbohydrates, which can spike blood sugar and insulin levels and interfere with ketosis.
The ripeness of plantains also affects their resistant starch content. When the skin of a plantain is green, and the flesh is firm, the fruit is at its highest in resistant starch. As the plantain ripens, its starches are converted into sugars, which is why ripe plantains are sweeter than green ones. The nutrition of plantains changes with their stage of ripeness, and ripe plantains contain lower amounts of starch and higher amounts of sugar.
Resistant starch is beneficial for gut health as it supports the growth of friendly bacteria in the intestines. It also helps to alleviate constipation, which is a common issue for those on a ketogenic diet. Additionally, resistant starch has a hypoglycemic effect, which helps control blood sugar levels. This is particularly effective when plantains are unripe.
While green plantains are a good source of resistant starch, they are also high in carbohydrates, which can be a concern for those on a keto diet. The ketogenic diet is a low-carb, high-fat diet that aims to burn fat for fuel instead of sugar. Therefore, it is important to consider the overall carbohydrate content of green plantains and their preparation methods before including them in a keto diet.
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Cooking green plantains converts their starches into sugar, which can impact blood glucose and insulin levels
Green plantains are a good source of resistant starch, a type of carbohydrate that isn't broken down and absorbed in the small intestine. Instead, it passes into the colon, where it serves as a fuel source for the friendly bacteria in the gut. This resistant starch doesn't enter the circulation, so it doesn't impact blood sugar levels and helps keep insulin low.
However, cooking green plantains can convert their starches into sugar. When plantains are fried, the heat and processing break down the resistant starches, making them digestible. This conversion from starch to sugar can impact blood glucose and insulin levels. Eating cooked or fried plantains can cause a spike in blood sugar and insulin levels, interfering with ketosis and making them less suitable for a low-carb diet.
The ripeness of plantains also affects their nutritional content. As a plantain ripens, its starches are converted into sugars, making ripe plantains sweeter and typically higher on the glycemic index. Green plantains, which are unripe, have a higher amount of resistant starch and are less sweet. Therefore, cooking green plantains can further increase their sugar content and impact on blood glucose and insulin levels.
Additionally, the method of preparation can also influence the suitability of plantains for a keto diet. Fried plantains, whether green or ripe, may have higher levels of sugar due to the cooking process. Other preparation methods, such as boiling or steaming, might have a different effect on the starch-to-sugar conversion and warrant further investigation.
In summary, while green plantains in their raw state can be a good source of resistant starch and may be suitable in small amounts for a keto diet, cooking them can convert their starches into sugar. This conversion can impact blood glucose and insulin levels, potentially interfering with ketosis. Therefore, it is essential to consider the ripeness and preparation methods when including plantains in a keto diet to make informed choices regarding their impact on blood sugar and insulin levels.
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Green plantains are high in carbs, which can kick you out of ketosis
Green plantains are high in resistant starch, a type of carbohydrate that isn't broken down and absorbed in the small intestine. Instead, it passes into the colon relatively intact, serving as a fuel source for the friendly bacteria in the gut. This resistant starch doesn't impact blood sugar levels and helps keep insulin low. It also slows down digestion and the release of sugar into the blood.
However, green plantains are still high in carbs, and when cooked, the starches in plantains are converted into easily digestible carbs. This can cause a spike in blood sugar and insulin levels, potentially kicking you out of ketosis. The ketogenic diet is a low-carb, high-fat diet that aims to shift your metabolism towards burning fat for fuel instead of sugar. As your liver breaks down fats, it produces ketone bodies, which become the primary energy source for your cells, resulting in a state called ketosis.
While green plantains have a higher resistant starch content than ripe plantains, cooking them can transform these starches into simple carbohydrates. This is why fried green plantains may not be the best option for maintaining ketosis. Eating small amounts of raw green plantain is less likely to affect ketosis, but most people find raw plantains unpalatable.
Additionally, the way plantains are prepared also matters. Frying plantains, for example, can further increase the conversion of starches into sugars, making it more challenging to stay within your daily net carb limit. As a result, green plantains, especially when cooked, may not be the ideal choice for those strictly adhering to a keto diet.
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Green plantains are a good source of potassium and magnesium
As plantains ripen, their starches are converted into sugars, which is why ripe plantains are typically sweeter than green ones. When the skin of the plantain is green, and the flesh inside is firm, the fruit is at its highest in resistant starch. As the plantain ripens and the skin turns yellow, speckled, and eventually black, the starches inside convert to sugars, increasing the fruit's sweetness.
Cooking green plantains can impact their nutritional value. Heat and processing convert resistant starches into sugar, and eating cooked or fried plantains can impact blood glucose and insulin levels, potentially kicking you out of ketosis. Therefore, eating small amounts of raw green plantain is ideal if you want to stay in ketosis. However, most people consider raw green plantains unpalatable due to their bitter taste.
Yellow plantains may also be a good source of magnesium and potassium, although they may not have as much resistant starch as green plantains. Studies have shown that plantains may have a "hypoglycemic effect", helping to control blood sugar levels, especially if they are unripe. However, fried green plantains are high in carbohydrates, with one cup containing approximately 58g of carbs. Therefore, while green plantains may be a good source of potassium and magnesium, they should be consumed in moderation on a keto diet due to their high carbohydrate content.
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Alternatives to plantains on a keto diet include avocados, salmon, and green leafy vegetables, and other keto recipes
The keto, or ketogenic, diet is a high-fat, low-carbohydrate diet designed to shift your body into a state of ketosis, where it burns stored fat for energy instead of blood sugar. The diet can be challenging to maintain, as it requires careful control of macronutrient intake, with 70% fat, 20-25% protein, and only 5-10% carbohydrates.
Green or unripe plantains are a good source of resistant starch, a type of carbohydrate that supports gut health and blood sugar control. Resistant starch is not broken down in the small intestine and thus does not spike blood sugar or insulin levels. Eating small amounts of raw green plantain can provide these benefits without pushing you out of ketosis. However, ripe or cooked plantains have lower amounts of starch and higher amounts of sugar, which can interfere with ketosis and make them unsuitable for a keto diet.
Alternatives to plantains on a keto diet include avocados, salmon, and green leafy vegetables, all of which are keto-friendly sources of potassium. Additionally, seeds and nuts are encouraged on the keto diet as they are whole foods that provide healthy fats and protein.
Other keto-friendly options include fresh vegetables, meat, and fish, as well as whole foods like eggs, dairy, and healthy oils. It is important to focus on eating more real, unprocessed foods and to be mindful of your macros and ingredients to ensure you are getting adequate nutrition while maintaining ketosis.
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Frequently asked questions
Fried green plantains are not keto-friendly as they are high in carbs. A cup of fried green plantains contains 58g of carbs, which can kick you out of ketosis.
Some keto-friendly sources of potassium include avocados, salmon, green leafy vegetables, and seeds and nuts.
The ideal macronutrient ratio for keto is approximately 70% fat, 20-25% protein, and 5-10% carbs.
Yes, green plantains are an excellent source of resistant starch, a type of fibre that supports gut health and helps control blood sugar.
Green plantains are rich in resistant starch, which does not raise blood sugar levels. On the other hand, ripe plantains have lower amounts of starch and higher sugar content, making them less suitable for keto.











































