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Should you eat cheese if you're sick? The full guide

4 min read

Contrary to popular belief, scientific studies have repeatedly shown that dairy products do not increase mucus production, though the myth persists. So, should you eat cheese if you're sick? The answer depends heavily on your specific symptoms and the type of illness you have.

Quick Summary

The suitability of eating cheese while sick varies. While generally fine for colds, its high fat and lactose content can be difficult to digest with stomach bugs, potentially worsening symptoms.

Key Points

  • Mucus Myth: Scientific research has found that cheese and other dairy products do not increase mucus production during a cold, contrary to popular belief.

  • Listen to Your Body: If you have a cold and feel that cheese causes a thicker, unpleasant sensation in your throat, it's fine to avoid it, even if the effect isn't due to increased mucus.

  • Avoid for Stomach Bugs: For gastrointestinal illnesses, cheese is generally not recommended due to its high fat content and lactose, which can be hard to digest and worsen symptoms.

  • Reintroduce Carefully: After a stomach bug, reintroduce cheese slowly, starting with small amounts of hard, aged, low-lactose varieties.

  • Check Nutrient Needs: Once digestive symptoms subside, cheese can be a source of beneficial protein and calcium to aid in recovery.

  • Seek Alternatives: When unwell, bland, easy-to-digest foods like broths, bananas, and toast are safer alternatives to heavy dairy.

In This Article

For many, reaching for a comforting snack like cheese when feeling under the weather is a natural impulse. However, depending on your symptoms and the nature of your illness, this might not be the best idea. The key is to understand how your body processes different types of cheese and to listen to its signals. When your immune system is busy fighting off an infection, your digestive system may also be sensitive, making certain foods harder to tolerate.

The Myth of Mucus: Cheese and Colds

A common myth dictates that you should avoid cheese and other dairy products when you have a cold because they increase mucus production and congestion. Numerous studies, however, have disproven this notion. Research published in the American Review of Respiratory Diseases, for example, found no difference in nasal mucus production between volunteers with colds who drank milk and those who did not.

How to Handle Cheese with Cold Symptoms

While dairy doesn't create more mucus, some people may experience a feeling of thicker mucus or a coating in their throat after consuming it. This is not a universal experience, so you should pay attention to your body's response. If you don't notice any worsening of symptoms, enjoying a small amount of cheese is likely fine. In fact, cheese provides nutrients like protein, calcium, and vitamins B12 and A, which can be beneficial for recovery.

  • Stick to small portions: Don't overdo it. A large, rich meal can be hard on a weakened system.
  • Choose milder flavors: Strong or pungent cheeses might be overwhelming for a sensitive palate.
  • Combine with soothing foods: Pair with simple crackers or use in a bland soup to add nutrition without irritation.

The Gastrointestinal Risk: Cheese and Stomach Bugs

For illnesses like the stomach flu or viral gastroenteritis, the situation with cheese is much different. A stomach bug causes inflammation of the gut lining, which can lead to temporary lactose intolerance. Because cheese contains both lactose and high levels of fat, it can be particularly difficult for a sensitive digestive system to handle. Consuming it could lead to increased bloating, gas, cramping, nausea, and diarrhea.

Low-Lactose and High-Fat Cheeses: A Comparison

The lactose and fat content of cheese varies significantly by type. When dealing with a sensitive stomach, it's helpful to know which varieties might be less problematic, though avoiding dairy is often the safest bet.

Cheese Type Lactose Content Fat Content Digestive Impact (when sick)
Aged Hard Cheeses (e.g., Cheddar, Parmesan) Very Low High May be tolerated in tiny amounts; fat can be problematic.
Semi-Hard Cheeses (e.g., Swiss, Gouda) Low Moderate to High Often better tolerated due to lower lactose, but fat is still a concern.
Soft Cheeses (e.g., Brie, Feta, Mozzarella) Moderate to High High Best to avoid; higher lactose and fat content increase digestive strain.
Processed Cheese (e.g., American) High High Typically contains higher levels of additives and fat, making it difficult to digest.

The Nutritional Angle: When Cheese Can Help

Once you begin to feel better and can tolerate bland, solid foods, cheese can offer valuable nutrition to aid your recovery. It's a good source of protein for muscle repair and contains essential minerals like calcium and phosphorus for bone health. For those who have lost their appetite, a small piece of mild cheese can be a good way to get some much-needed calories and nutrients.

Best Practices for Reintroducing Cheese

When reintroducing cheese after a stomach bug, follow these steps to minimize the risk of a relapse of symptoms:

  • Start small: Begin with a very small portion, perhaps a single cube of an aged, hard cheese like Parmesan.
  • Listen to your body: If you experience any discomfort, stop and wait a few more days before trying again.
  • Opt for low-lactose options: Aged hard cheeses are your best bet initially, as the aging process breaks down most of the lactose.
  • Avoid high-fat varieties: Steer clear of fatty or greasy foods, as these can irritate your gut.

Alternatives to Consider When Unwell

If you are advised to avoid dairy or simply feel it's best to, there are many other soothing and nutritious options available:

  • Warm Broths and Soups: Provides hydration and nutrients in an easy-to-digest format.
  • BRAT Diet: Bananas, rice, applesauce, and toast are classic choices for an upset stomach.
  • Yogurt or Kefir: These fermented dairy products contain probiotics that can aid gut health, but it is important to choose plain, unsweetened varieties and introduce them slowly, as they can still contain lactose.
  • Herbal Teas: Ginger and chamomile teas can be soothing and anti-inflammatory.

Conclusion

When deciding should you eat cheese if you're sick, the answer hinges entirely on the type of illness you have. While the long-held fear of increased mucus from dairy during a cold has been debunked by science, individual sensitivity and the temporary thickening sensation some experience mean it's still a matter of personal comfort. However, when dealing with a stomach bug, the high fat and lactose content of most cheeses makes them a poor choice, as they can exacerbate gastrointestinal symptoms like bloating and diarrhea. The best approach is to listen to your body and stick to bland, easy-to-digest foods until your stomach has settled. Once you're on the road to recovery, reintroducing small amounts of low-lactose, aged cheeses can help replenish lost nutrients and provide a welcome energy boost.

For more detailed information on specific medical conditions, it's always best to consult with a healthcare professional, especially if you have underlying conditions like lactose intolerance.

Frequently Asked Questions

No, multiple scientific studies have disproven the myth that dairy products increase phlegm or mucus production. However, the creamy texture of dairy can cause a subjective sensation of thicker mucus for some people, but it does not actually produce more.

It is generally not recommended to eat cheese when you have a stomach bug or gastroenteritis. The high fat content and presence of lactose can be difficult for an inflamed digestive system to process, which may worsen symptoms like diarrhea and bloating.

If you must have cheese, aged hard cheeses like Parmesan or aged cheddar are best for a sensitive stomach. The aging process breaks down most of the lactose, making it lower in lactose than softer cheeses. However, they are still high in fat, so moderation is key.

Good alternatives include bland, easy-to-digest foods like broths, clear soups, bananas, toast, rice, and applesauce (the BRAT diet). These options provide nutrients and hydration without irritating a sensitive stomach.

Yes, cheese is a good source of protein, calcium, and vitamins A and B12, which can be beneficial for recovery. However, these benefits are best gained when your digestive system is strong enough to handle it without irritation, usually after the initial acute phase of illness.

If you have lactose intolerance, you should already be avoiding cheese and other dairy products. An illness that affects your gut, like a stomach bug, can make your symptoms even more pronounced. Stick to lactose-free alternatives.

The temperature of the cheese itself is not the primary concern. The main issues are the fat and lactose content, which are difficult for a compromised digestive system to process. Focus on the cheese type and your illness rather than its temperature.

References

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Medical Disclaimer

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