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Is it Bad to Eat Unripe Fruits?

Health Tips
Last Updated May 07, 2023

Depending on your choice, unripened fruit can either be a delicious, nutritious treat or sickening to the stomach. Many Asian and other cultures eat unripened fruit and believe the unsweetened flavour is nutritious and good for health. They often eat unripened mangoes, papayas and other fruits and enjoy them.

We in western countries feel that unripened fruit is not good for health. While it is true that unripened fruit is highly acidic, other cultures eat unripened fruit and feel no side effects such as a stomach complaint. If a fruit is not naturally green, and yet appears to be so, you can be sure it is not yet ripe.

It is a common mistake to think that all fruit at your local fruit store is the ripest you are going to get. Climacteric fruits may be purchased unripened and left a day or two in the fruit bowl at home to ripen naturally. Some of these fruits include apples, apricots, avocado, bananas, rockmelon (but not honeydews or watermelons), figs, guavas, mangoes, nectarines, papaya, peaches, pears, plums and tomatoes.


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How to Ripen Fruit Fast

Follow these easy tips to speed up the ripening of your unripened fruit at home:

Placing the unripe fruit in the paper bag on a counter and leave it for a day or two. Place bananas next to the unripe fruit. Be sure to check the fruit daily to make sure it hasn't started to rot. As seen in the summertime, fruit generally ripens at a greater speed in lighter and warmer conditions. Avoid placing unripened fruit in the fridge because the fridge is cold and dark and the fruit won't ripen.

Cooking is also another solution to unripened fruit. It doesn't speed up the ripening process, but it does:

  • Increase the sweetness of the fruit
  • Decrease the bitterness and astringency of the fruit
  • Soften the fruit, allowing it to be eaten more easily

Cooking fruit can also destroy the nutrients in the fruit, so it should only be used moderately. Fruits have Vitamin C and other nutrients in them and cooking can be detrimental to their health benefits.

There are several fruits however that when eaten unripened, prove as delicious as they are nutritious. This may be why Asian and indigenous cultures eat unripened fruit as a matter of course. They may be aware that unripened fruit has many health benefits.

Health benefits of unripened fruits

Papaya in all its forms is deliciously sweet and refreshing. Papayas, including that of the green variety, are laden with antioxidant nutrients such as carotenes, vitamin C, flavonoids, B vitamins, folate, pantothenic acid and the minerals potassium and magnesium. They also contain a high amount of fibre and the digestive enzyme papain.

Unripened green papaya may be used to treat:

  • Digestive Disorders; The enzyme papain found in unripened papaya is reported to relieve symptoms of gastric juice deficiency, excess digestive mucus, intestinal irritation and dyspepsia.
  • Menstrual Irregularities: For those seeking relief from irregular periods, raw papaya juice should be drunk. The muscle fibres of the womb are stimulated by unripe papaya juice, which trigger a natural menstrual flow.
  • Skin Disorders; Unripe papaya can relieve the swelling and inflammation of wounds, as well as reducing the severity of symptoms of other skin disorders such as acne and psoriasis. It has also been anecdotally reported as a natural exfoliant that decreases skin pigmentation and other brown spots.
  • Throat Conditions: Raw papaya juice mixed with honey has been known to reduce the inflammation and infection of throat disorders such as tonsillitis by dissolving the mucus membrane

Green mangoes are a rich source of starch and offer many medicinal qualities derived from the astringent, acidic qualities of the fruit. The sour taste is due to the presence of oxalic, citric, malic and succinic acids, and it is also rich in other antioxidant nutrients such as pectin, Vitamin C, niacin and the vitamins B1 and B2.

Unripened, green mangoes may be used to treat:

  • Heat Stroke: Drinks prepared with unripened mangoes have been anecdotally reported to relieve heat exhaustion and stroke. Preparing the beverage with salt relieves dehydration and replaces sodium chloride and iron otherwise lost due through sweating.
  • Digestive Disorders: Diarrhea, dysentery, piles, morning sickness, dyspepsia, indigestion and constipation may also be relieved after eating an unripened mango. Make sure to chose one in which the seed is not fully formed and add honey to taste.
  • Bilious Disorders: Green mangoes contain acids that stimulate the secretion of bile and act as intestinal antiseptic. This prevents bacteria from decomposing, toning the liver, keeping the system healthy.
  • Blood Disorders: The high vitamin C content of green mangoes increases the elasticity of blood vessels, helps form new blood cells, allows for greater iron absorption from food and increases the body's resistance to diseases such as anemia, cholera, dysentery and TB

Excessive consumption (more than 1-2/day) of green mangoes may lead throat irritation, indigestion, dysentery and abdominal colic. Water should also be avoided after eating a green mango because it coagulates the sap and makes it more irritant.

Many people don't even know about unripened green tomatoes, and the different taste they offer to their red counterparts. They are calorie poor, high in vitamin C, vitamin A, lycopene and beta-carotene.

Before eating an unripened green tomato remember that not all green tomatoes are unripened. Some are bred specifically green and may be ripe. Make sure to check with your grocer before purchasing the fruit. Avoid smaller green tomatoes that carry an overly bitter taste that can ruin your green tomato recipe. Before cooking your green tomatoes, make sure to extract the woodier stem and core piece.

It is recommended green tomatoes be cooked before consumption and limited to 1-2 per day. Excess consumption of Green tomatoes may cause diarrhea and vomiting as they contain the natural toxins glycoalkaloids that can irritate the gastrointestinal tract. These toxins are generally not present in ripened, red tomatoes and give the green tomatoes their bitter taste.

Green bananas are another fruit that has health benefits. Green bananas can:

  • Treat diarrhea in children and adults
  • Resistant starch in green bananas can increase the fat burning process
  • Resistant starch also increases the body's sensitivity to insulin and may be helpful to type 2 diabetes sufferers

Consider the health benefits of unripened fruit

We all like sweet fruit, but there are many health benefits to unripened fruit. They can be hard to find on supermarket shelves, but you may find unripened fruits in a smaller shop that sells organic fruits and vegetables. They may be unripe and you can tell just by looking at the skin. If it is green, it is probably unripe, but there are exceptions to this rule. Oranges should be orange, but organic oranges are often green and when opened, have the sweet flavour of oranges. They may be even sweeter than large oranges bought in the supermarket because organic oranges tend to be sweeter than those that are large in size.

You don't need to eat unripened fruit all the time, but when you feel you need some, they can be of benefit to your health. We all love the flavour of sweet fruit and should enjoy sweet fruit in most cases, but don't forget the health benefits of unripe fruit.

Cooking Unripened Fruits: Pros and Cons

Cooking unripened fruits can be an interesting way to experiment with flavors and textures, as well as to make use of fruits that may not be as enjoyable when eaten raw. However, there are both advantages and disadvantages to cooking unripened fruits.

Pros:

  1. Enhanced sweetness: Cooking unripened fruits can help break down the complex carbohydrates, which can increase the sweetness of the fruit and make it more palatable.
  2. Reduced bitterness and astringency: Cooking can help mellow the bitter and astringent taste that is often associated with unripened fruits.
  3. Improved texture: Cooking can soften unripened fruits, making them easier to eat and digest.
  4. Increased variety in recipes: Incorporating unripened fruits into cooked dishes can add a unique flavor profile and provide an interesting twist to traditional recipes.
  5. Reduced food waste: Cooking unripened fruits allows you to make use of fruits that may otherwise go to waste if they don't ripen properly.

Cons:

  1. Loss of nutrients: Cooking can cause some nutrients, particularly Vitamin C and other heat-sensitive compounds, to break down and be lost. This can reduce the overall nutritional value of the fruit.
  2. Altered texture: While cooking can soften unripened fruits, it can also make them mushy or change their texture in ways that might not be desirable for some recipes or personal preferences.
  3. Limited shelf life: Cooked fruits typically have a shorter shelf life compared to raw fruits, so they need to be consumed relatively quickly to avoid spoilage.
  4. Time and effort: Cooking unripened fruits requires additional time and effort compared to simply eating raw, ripe fruits.
  5. Potential loss of flavor: Cooking can sometimes result in a loss of the unique flavors that unripened fruits have, which might be appealing to some people.

In conclusion, cooking unripened fruits can be a creative way to enjoy them, but it's important to weigh the pros and cons before deciding to cook them. If you're looking for a unique taste experience and are willing to put in the time and effort, cooking unripened fruits can be a delicious and nutritious addition to your diet. However, if you're seeking to maximize nutrient intake, you may want to focus on consuming ripe fruits instead.

Green Mangoes: Nutrients, Health Benefits, and Uses

Green mangoes, also known as unripe mangoes, are a popular fruit in many cultures, particularly in Asia. Although they have a distinct tart and tangy taste compared to ripe mangoes, they offer an array of health benefits and culinary uses.

Nutrients: Green mangoes are rich in various nutrients and antioxidants, including:

  1. Starch: They are a good source of starch, which provides energy to the body.
  2. Vitamins: Green mangoes are high in Vitamin C, niacin, and vitamins B1 and B2, which help support a healthy immune system, energy production, and cell health.
  3. Minerals: They contain minerals like potassium, which is essential for maintaining proper fluid balance and muscle function, and magnesium, which supports nerve and muscle function.
  4. Dietary fiber: Green mangoes are a good source of dietary fiber, which aids in digestion and helps maintain healthy cholesterol levels.
  5. Antioxidant compounds: They are rich in antioxidant compounds such as oxalic, citric, malic, and succinic acids, as well as pectin, which can help protect the body from damage caused by free radicals.

Health Benefits: Green mangoes offer several health benefits, including:

  1. Heatstroke relief: Drinks made from green mangoes can help prevent and alleviate heat exhaustion and heatstroke. Combining green mangoes with salt can help replenish lost sodium chloride and iron due to sweating.
  2. Digestive health: Green mangoes can help alleviate digestive issues like diarrhea, dysentery, morning sickness, indigestion, and constipation. They contain acids that stimulate bile secretion and act as an intestinal antiseptic.
  3. Liver health: The acids in green mangoes can help tone the liver and prevent the decomposition of bacteria, contributing to a healthy system.
  4. Blood health: The high Vitamin C content in green mangoes helps form new blood cells, increases the elasticity of blood vessels, and enhances the body's resistance to diseases like anemia, cholera, dysentery, and tuberculosis.

Uses: Green mangoes can be used in various culinary applications, including:

  1. Pickles: Green mangoes can be pickled, which adds a tangy, flavorful twist to many dishes.
  2. Chutneys and sauces: They can be used to make chutneys and sauces, which can be served alongside main dishes or as a condiment.
  3. Salads: Green mangoes can be added to salads for a unique flavor and texture.
  4. Drinks: They can be used in beverages, like smoothies or green mango juice, to add a refreshing and tart element.
  5. Snacks: Green mangoes can be sliced and eaten raw, often with salt, chili powder, or other seasonings for a tangy snack.

When consuming green mangoes, moderation is key, as excessive consumption may lead to throat irritation, indigestion, or dysentery. It is also advisable to avoid drinking water immediately after eating green mangoes, as it can cause the sap to coagulate and become more irritating.

Studies into eating unriped fruits

There are limited studies specifically focused on the consumption of unripened fruits. However, some studies have explored the health benefits and nutritional properties of certain unripe fruits, such as green bananas and green mangoes

  1. Green Bananas:

    Study: "Resistant starch from high amylose maize (HAM-RS2) and Dietary butyrate reduce abdominal fat by a different apparent mechanism" (Shen et al., 2014).

    The authors also found that resistant starch increased fat oxidation and improved insulin sensitivity, which could be beneficial for people with type 2 diabetes.

  2. Green Mangoes.

    Study: Effect of green mango (Mangifera indica L.) consumption on plasma antioxidant status and lipid profile in healthy adults" (Singh et al., 2019).

    This study assessed the impact of green mango consumption on plasma antioxidant status and lipid profile in healthy adults. The results showed a significant increase in plasma antioxidant capacity and a reduction in total cholesterol, low-density lipoprotein cholesterol, and triglycerides. The study concluded that regular consumption of green mangoes could improve antioxidant status and lipid profile, potentially lowering the risk of cardiovascular diseases.

Green Tomatoes: How to Select, Cook, and Consume Safely

Green tomatoes are unripe tomatoes that can be used in various culinary applications. They have a distinct tangy flavor and a firm texture compared to ripe tomatoes. To enjoy green tomatoes safely and get the most out of their unique taste, it is essential to know how to select, cook, and consume them properly.

Selecting Green Tomatoes:

  1. Choose firm, unblemished tomatoes: When selecting green tomatoes, opt for those that are firm to the touch, with smooth, unblemished skin. Avoid any with soft spots or visible signs of decay.
  2. Differentiate between unripe and naturally green tomatoes: Some tomato varieties are naturally green even when ripe. Check with your grocer or farmer to ensure you are selecting unripe green tomatoes if that is what your recipe calls for.

Cooking Green Tomatoes:

  1. Fried green tomatoes: One popular way to cook green tomatoes is to fry them. Slice the tomatoes, dip them in a batter or breading, and fry them in hot oil until golden brown and crispy.
  2. Pickling: Green tomatoes can be pickled in a vinegar brine, which helps preserve them and adds a tangy flavor that can complement various dishes.
  3. Baking and roasting: Green tomatoes can be baked or roasted in the oven, either as a side dish or incorporated into casseroles and other recipes.
  4. Soups and stews: Chopped green tomatoes can be added to soups and stews for a unique flavor and texture.

Consuming Green Tomatoes Safely:

  1. Limit daily consumption: It is recommended to limit green tomato consumption to 1-2 per day. Excessive consumption may cause gastrointestinal irritation, diarrhea, and vomiting due to the presence of natural toxins called glycoalkaloids.
  2. Cooking is recommended: Cooking green tomatoes can help reduce the levels of glycoalkaloids, making them safer to consume. It also softens their texture and enhances their flavor.
  3. Avoid combining with certain medications: Green tomatoes contain vitamin K, which can interfere with blood-thinning medications like warfarin. If you are taking such medications, consult your healthcare provider before incorporating green tomatoes into your diet.

Key Takeaways

  1. Green papayas are rich in antioxidants, fiber, and the enzyme papain, which can help treat digestive disorders, menstrual irregularities, skin disorders, and throat conditions.
  2. Green mangoes are high in starch, vitamins, minerals, and antioxidant compounds, and can help alleviate heatstroke, digestive issues, liver problems, and blood disorders.
  3. Green tomatoes are low in calories and high in vitamins and antioxidants but should be consumed in moderation and preferably cooked, as excessive consumption may cause gastrointestinal issues.
  4. Green bananas contain resistant starch, which can help treat diarrhea, increase fat burning, and improve insulin sensitivity in type 2 diabetes patients.

Cooking unripened fruits can enhance their sweetness, reduce bitterness, and improve texture but may lead to the loss of nutrients, altered texture, and a shorter shelf life. When consuming unripened fruits, moderation is key to avoid potential health risks.

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Originally published on Jun 10, 2018

FAQs About Unripe Fruits

Are all unripe fruits green?

Yes. Unripe fruits contain chlorophyll in their cells, which enable them to absorb energy from sunlight during photosynthesis. Chlorophyll disintegrates as the fruit ripens and carotenoids are produced.

How is unripe fruit stored?

If you picked a fruit prematurely, you can ripen it quickly by placing it in a paper bag and rolling down the top of the bag. This process traps the fruit's ethylene gas and ripens the fruit faster. But placing a banana next to the unripe fruit will double the ripening rate.

Is unripe fruit less nutritious?

No. Several unripened fruits offer a host of health benefits. Green papaya, for instance, is packed with antioxidants, vitamin C, carotenes, potassium, B vitamins and many others. Green mangoes have high levels of vitamins B1 and B2, niacin, pectin and succinic acids which help boost the immune system.

What should you do if you accidentally cut an unripe fruit?

Whilst some fruits can be kept from rotting after they've been cut open before reaching maturity, others that contain small amounts of ethylene gas just don't stand a chance. In case you've cut an avocado only to realise that it isn't ripe yet, rub its flesh with lime, put both halves of the fruit back together and then wrap it with a plastic wrap before refrigerating. Leave it there for a couple of days to ripen.

Why are unripe fruits sour?

Unripe fruits contain high acid concentration, specifically malic and citric acids. As the fruit ripens, the organic acids decrease and are converted to sugar.

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