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Why are apples good when sick? An in-depth nutritional guide

5 min read

According to a 2020 review in the Advances in Nutrition Journal, flavonoids found in fruits like apples can help reduce inflammation and strengthen the immune system. These powerful nutrients are a key reason why are apples good when sick and aid in recovery.

Quick Summary

Apples are beneficial when sick due to their high content of immune-boosting antioxidants, anti-inflammatory compounds, and gut-soothing soluble fiber like pectin. Their high water content also aids in hydration, while their carbohydrates provide a gentle source of energy for the body during recovery.

Key Points

  • Immune Support: Apples contain antioxidants like quercetin and vitamin C that help strengthen the immune system and protect against infection.

  • Anti-Inflammatory Action: The flavonoids in apples can reduce inflammation, particularly in the respiratory system, offering relief from cold and flu symptoms.

  • Digestive Comfort: Apples, especially when cooked, are a gentle source of soluble fiber (pectin) that can soothe an upset stomach and regulate bowel movements.

  • Prebiotic for Gut Health: Pectin in apples acts as a prebiotic, feeding good bacteria in your gut and improving your gut microbiome, which is linked to better overall health.

  • Hydration and Energy: High water content and natural sugars provide essential hydration and a steady source of energy, helping combat fatigue associated with illness.

In This Article

Nutritional Benefits of Apples During Illness

When your body is fighting off an illness, proper nutrition is crucial for a speedy recovery. Apples provide a gentle yet powerful dose of essential nutrients that support your body’s natural healing processes. This is why they are often recommended as part of a supportive diet when you're feeling under the weather.

Antioxidant and Anti-Inflammatory Properties

One of the primary benefits of consuming apples when sick comes from their rich antioxidant profile. The fruit, particularly the skin, is loaded with compounds like quercetin, a potent flavonoid with significant anti-inflammatory effects. Inflammation is a natural part of the immune response, but chronic inflammation can be detrimental. Apples help regulate this response, especially in the respiratory system, which is beneficial during a cold or flu. A 2022 review in the Journal of Food Science highlighted how antioxidants in apples help strengthen the gut microbiome, which in turn reduces inflammation.

Immune System Support

While an apple doesn't contain as much vitamin C as an orange, it still provides a notable amount that contributes to immune function. Vitamin C helps strengthen the epithelial barrier against pathogens and guards against environmental oxidative stress. A stronger immune system means your body is better equipped to fight off the infection. In addition, apples contain other vitamins and minerals like vitamin K, potassium, and magnesium, all of which are important for maintaining overall metabolic functions during illness.

Digestive Health and Comfort

For many, sickness comes with stomach upset, including nausea or diarrhea. Apples contain soluble fiber, particularly pectin, which is known to be gentle on the digestive system. Pectin helps regulate bowel movements by absorbing water, which can firm up stool during diarrhea, or by adding bulk, which can alleviate constipation. When cooked or stewed, apples become even easier to digest, making them a suitable food for sensitive stomachs. This makes applesauce a popular and soothing option when you're sick.

Hydration and Energy

Staying hydrated is paramount when you are sick. Apples are approximately 85% water, providing a refreshing way to increase your fluid intake alongside water and teas. They also offer natural carbohydrates and sugars, which provide a much-needed energy boost when your appetite is low. This gentle source of energy helps prevent the fatigue often associated with illness without causing a rapid sugar spike and crash.

How to Enjoy Apples When You're Sick

When you're unwell, the preparation of your food can make a difference in how your body tolerates it. Here is a breakdown of how to prepare apples for different symptoms:

  • For Upset Stomach/Nausea: Cooked or stewed apples (or unsweetened applesauce) are recommended. The cooking process breaks down the fibers, making them easier to digest and less irritating to a sensitive stomach. This is a core part of the classic BRAT diet (Bananas, Rice, Applesauce, Toast).
  • For Constipation: Raw apples with the skin on provide the maximum amount of insoluble fiber. The skin contains a large portion of the apple's fiber, helping to promote regular bowel movements.
  • For Immune Support: Raw, whole apples with the skin are best for a full dose of antioxidants like quercetin. A small amount of raw apple is often more tolerable than other fruits with higher acidity.
  • For Hydration and Mild Symptoms: Apple juice can provide hydration and a quick burst of energy, but be mindful of sugar content. Stick to 100% juice and avoid excessive intake, as the whole fruit offers more fiber and nutrients.

Apples vs. Other Fruits for Sickness

Feature Apples Oranges Bananas
Immune Boost Rich in antioxidants (quercetin, flavonoids) and vitamin C to fight inflammation. High in vitamin C, but high acidity can irritate a sore throat or cause reflux when sick. Contains vitamin B6 and potassium, good for replenishing lost nutrients.
Digestive Ease Soluble fiber (pectin) soothes the gut, helping with both diarrhea and constipation. Can be cooked for gentler digestion. High acidity can be harsh on a sensitive or nauseous stomach. Excellent for an upset stomach; part of the BRAT diet. Can help restore lost electrolytes.
Hydration High water content (85%) helps with hydration. High water content, but can be acidic. Good for hydration but less so than apples or watermelon.
Energy Provides natural, steady-release sugars for energy. High in sugars, which can be an energy boost but may upset a sensitive stomach. Excellent source of carbohydrates for energy restoration.
Best For Overall immune and gut support. Gentle and versatile, especially when cooked. Best for a vitamin C boost when not experiencing stomach upset or throat irritation. Nausea, vomiting, and restocking electrolytes. Very gentle on the stomach.

Conclusion: An Apple A Day, a Smart Move When You're Sick

The age-old adage has merit, particularly when you're under the weather. Apples are a well-rounded and easily tolerated food that supports the body's recovery from illness. From their ability to strengthen the immune system with powerful antioxidants to their role in soothing digestive issues with prebiotic fiber, the humble apple proves to be a valuable ally. Whether enjoyed raw with the skin on for maximum nutrients, or cooked into a gentle applesauce for sensitive stomachs, incorporating apples into your diet can provide the hydration, energy, and immune support you need to get back on your feet faster. While no food is a substitute for professional medical advice, a well-prepared apple is a nutritious and comforting choice during sickness.

: https://pmc.ncbi.nlm.nih.gov/articles/PMC9321083/

Frequently Asked Questions

What part of the apple is most beneficial when sick?

The skin of the apple contains a high concentration of antioxidants, especially quercetin, which has anti-inflammatory properties. For digestive relief, the soluble fiber (pectin) is beneficial and is more prominent in cooked apples and applesauce.

Is it better to eat raw or cooked apples when sick?

For a sensitive stomach or nausea, cooked apples or applesauce are best, as cooking breaks down the fibers, making them easier to digest. For general immune support without stomach issues, a raw apple with the skin offers the most potent antioxidant benefits.

Do apples help with nausea?

Yes, apples can help with nausea. They are a core part of the BRAT diet (Bananas, Rice, Applesauce, Toast) recommended for stomach upset because they are bland, easy to digest, and contain pectin that helps eliminate toxins from the digestive tract.

What nutrients in apples are good for fighting a cold?

Apples contain vitamin C, which boosts the immune system, and potent antioxidants like quercetin, which can help reduce inflammation related to cold symptoms, particularly in the respiratory system.

How does apple pectin help when you have diarrhea?

Apple pectin is a soluble fiber that absorbs water in the intestines, which helps to firm up stools. It also acts as a prebiotic, feeding beneficial gut bacteria, which can be thrown off balance during sickness.

Are apples acidic and will they irritate a sore throat?

Apples are mildly acidic, but generally less so than citrus fruits. When cooked, their acidity is even less of a concern. They are considered gentle on the throat and digestive system, unlike highly acidic fruits which can cause irritation or reflux.

Is apple juice as good as whole apples when sick?

While 100% apple juice can help with hydration, it lacks the fiber and many of the beneficial compounds found in the skin and pulp of the whole fruit. For maximum benefits, especially digestive and anti-inflammatory support, whole or cooked apples are the better choice.

Frequently Asked Questions

The skin contains the highest concentration of beneficial antioxidants like quercetin. For digestive relief, the soluble fiber (pectin), more concentrated in cooked apples and applesauce, is most helpful.

For a sensitive stomach or nausea, cooked apples or applesauce are better as the fiber is easier to digest. For general immune support without stomach issues, a raw apple with the skin on provides the most nutrients.

Yes, apples can help with nausea. Applesauce is a bland, easily digestible food that is part of the BRAT diet, and the pectin helps eliminate toxins from the digestive tract.

Apples provide vitamin C, which supports the immune system, and anti-inflammatory antioxidants like quercetin, which can help reduce inflammation related to cold symptoms, particularly in the respiratory system.

Apple pectin is a soluble fiber that absorbs water in the intestines, which helps to firm up stools. It also acts as a prebiotic, feeding beneficial gut bacteria which can be imbalanced during sickness.

Apples are mildly acidic, but significantly less so than citrus fruits. They are generally considered gentle on the throat and digestive system, and cooking them further reduces any potential for irritation.

While 100% apple juice provides hydration, it lacks the fiber and many of the beneficial compounds found in the whole fruit. For maximum benefits, especially digestive and anti-inflammatory support, whole or cooked apples are the better choice.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.