Edible Fruit Skins and Top Anti-Cancer Foods to Include in Your Diet - Nutrition

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Fruits with edible skins and the intake of anti-cancer foods?


Hello doctor, I have two questions to ask.

1.
Which fruit peels are safe to eat and which should not be consumed? For example, is it suitable to eat kiwi skin along with the flesh? Some articles suggest it can be eaten together while others say it shouldn't.
I lack expertise in this area, so I hope to get your opinion.
2.
Which foods (including fruits) have the best anti-cancer effects that you would recommend to eat more of?

Mr. Zhu, 20~29 year old female. Ask Date: 2023/02/05

Dr. Xie Peiru reply Nutrition


Hello: Many fruit peels contain higher levels of phytochemicals (e.g., polyphenols, indoles, flavonoids, lycopene, allicin, etc.) compared to the flesh, but the hardness of the peel may retain various pesticides or other substances, so not all fruit peels are suitable for raw consumption.

1.
Which fruit peels are safe to eat and which should be avoided (excluding wax and pesticide residues)? Safe fruit peels to eat (excluding wax and pesticide residues) include apples, pears, tomatoes, grapes, kiwis, and bananas, among others.
2.
Which foods (including fruits) have the best anti-cancer effects and are recommended for increased consumption? Fresh, unprocessed foods that are consumed in a balanced and diverse manner (10-40 varieties per day) provide the necessary nutrients for cancer prevention and maintaining overall health.
Wishing you good health from the Nutrition Department of Qiyiying.

Reply Date: 2023/02/05

More Info


When it comes to the consumption of fruit skins and the selection of anti-cancer foods, there are several important factors to consider. Let's break down your questions into two parts: the edibility of fruit skins and the best foods for cancer prevention.


1. Edibility of Fruit Skins
Many fruits have skins that are not only edible but also packed with nutrients, including fiber, vitamins, and phytochemicals that can contribute to overall health. However, it is crucial to be aware of potential pesticide residues and wax coatings that may be present on the skins of some fruits. Here’s a general guideline on which fruit skins are typically safe to eat:
- Edible Skins:
- Apples: Rich in fiber and antioxidants.

- Pears: Similar benefits to apples.

- Tomatoes: The skin contains lycopene, an antioxidant linked to reduced cancer risk.

- Grapes: Packed with resveratrol, which has anti-inflammatory properties.

- Kiwis: The skin is edible and contains more fiber than the flesh.

- Bananas: While not commonly eaten, the skin is rich in nutrients.

- Non-Edible Skins:
- Pineapples: The skin is tough and not digestible.

- Mangoes: The skin can cause allergic reactions in some individuals.

- Avocados: The skin is not typically consumed due to its tough texture.

Regarding your specific question about kiwi skins, they are indeed edible and can be consumed with the fruit. However, if you are combining them with meat, consider the texture and flavor compatibility. Kiwi skins have a slightly fuzzy texture, which may not be appealing to everyone when paired with meat.


2. Top Anti-Cancer Foods
A diet rich in a variety of fruits, vegetables, whole grains, and lean proteins is essential for cancer prevention. Here are some foods that are particularly noted for their potential anti-cancer properties:
- Cruciferous Vegetables: Broccoli, cauliflower, kale, and Brussels sprouts contain compounds like sulforaphane, which may help detoxify carcinogens and inhibit cancer cell growth.

- Berries: Blueberries, strawberries, and raspberries are high in antioxidants, particularly anthocyanins, which have been linked to reduced cancer risk.

- Garlic and Onions: These contain sulfur compounds that may enhance the immune system and reduce the risk of certain cancers.

- Fatty Fish: Salmon, mackerel, and sardines are rich in omega-3 fatty acids, which have anti-inflammatory properties and may help reduce cancer risk.

- Legumes: Beans and lentils are high in fiber and protein, which can help maintain a healthy weight and reduce cancer risk.

- Nuts and Seeds: Walnuts and flaxseeds are particularly noted for their omega-3 content and phytochemicals that may help prevent cancer.

- Whole Grains: Foods like brown rice, quinoa, and whole wheat bread are high in fiber, which is associated with a lower risk of colorectal cancer.

- Turmeric: Curcumin, the active compound in turmeric, has been studied for its anti-inflammatory and anti-cancer properties.

Incorporating a variety of these foods into your diet can help ensure that you are getting a wide range of nutrients that support overall health and may reduce cancer risk. It is also important to maintain a balanced diet, avoid processed foods, and limit red and processed meats, as these have been linked to an increased risk of certain cancers.


Conclusion
In summary, many fruit skins are safe and nutritious to eat, while a diverse diet rich in fruits, vegetables, whole grains, and lean proteins can help reduce cancer risk. Always wash fruits thoroughly to minimize pesticide exposure, and consider the overall balance of your diet for optimal health. If you have specific dietary concerns or health conditions, consulting with a healthcare professional or nutritionist is advisable for personalized guidance.

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