Diet for Common Cold: Boost Immunity with The Right Food

Nutrition Corner with Dr D 

Diet for Common Cold: Boost Immunity with The Right Food

Did you know that what you eat can impact how quickly you recover from a common cold? While it's common knowledge that rest and hydration are key, there are specific foods that can help boost your immunity and speed up your recovery. On the flip side, certain foods can actually make your symptoms worse. In this article, we'll discuss the do's and don'ts of Diet for Common Cold, based on recent research studies.

Foods to Avoid:

Sweets, Candies and Sodas: (Sugar suppresses the immune system)

Sweets, candies, and sodas are some of the most common comfort foods people reach for when they're feeling under the weather. However, these sugary treats may actually do more harm than good when it comes to fighting off a common cold. Consuming sugar can weaken your immune system, making it harder for your body to fight off infections.

 

A recent study published in the American Journal of Clinical Nutrition found that consuming 100 grams of sugar (which is equivalent to about two cans of soda) can suppress the activity of white blood cells for up to five hours. White blood cells play a crucial role in our immune system, as they are responsible for identifying and attacking viruses and bacteria that enter our body.

 

Additionally, sugary foods can also increase inflammation in the body, which can further weaken the immune system. Chronic inflammation has been linked to a number of health issues, including cardiovascular disease and diabetes.

Ice Cold Drinks: (Ice cold drinks constrict blood vessels)

When you're feeling under the weather, it's important to stay hydrated by drinking plenty of fluids. However, it's best to avoid ice-cold drinks, such as sodas or iced tea, as they can constrict blood vessels in your throat and make your cold symptoms worse.

 

Ice-cold drinks can cause blood vessels in your throat to contract, which can make it harder for your body to fight off infections. This constriction can also make it harder for your body to warm up, which can lower your overall body temperature and prolong your cold symptoms.

 

A study published in the journal Rhinology found that consuming ice-cold drinks can worsen symptoms of a cold, including nasal congestion and runny nose. Participants who consumed cold drinks experienced a worsening of their cold symptoms compared to those who drank warm beverages.

 

Instead of ice-cold drinks, opt for warm teas or lukewarm water. Warm fluids can help soothe a sore throat and ease congestion by helping to thin out mucus. Additionally, some warm beverages, such as ginger tea or honey and lemon tea, can have additional health benefits that can help you recover from a cold more quickly.

Dairy Products: (Dairy products increase mucus production)

Many people believe that consuming dairy products, such as milk, cheese, and yogurt, can help soothe a sore throat and ease congestion during a common cold. However, recent research suggests that dairy products may actually increase mucus production, making your symptoms worse.

 

Dairy products contain a protein called casein, which can stimulate mucus production in some people. When you're already battling a cold, excess mucus can make it harder to breathe and exacerbate symptoms such as coughing and congestion.

 

A study published in the journal Chest found that consuming dairy products can increase mucus production in the respiratory tract, making it harder to clear out. In the study, participants who consumed dairy products had thicker and stickier mucus than those who did not.

 

Furthermore, dairy products can also be high in fat, which can increase inflammation in the body and further worsen your symptoms. So, if you're experiencing a cold, it's best to avoid dairy products until you start feeling better.

Foods to Increase in Diet:

Protein - Chicken Soup: (Chicken soup has anti-inflammatory properties)

Chicken soup is a classic home remedy for the common cold, and for good reason. Chicken soup contains anti-inflammatory properties that can help reduce inflammation in your nose and throat, making it easier to breathe. Additionally, the protein in chicken soup can help support your immune system, helping you recover more quickly.

 

Recent studies have shown that chicken soup can indeed help alleviate symptoms of the common cold. The anti-inflammatory properties of chicken soup come from various ingredients, including chicken, vegetables, and herbs.

 

One study published in the Chest Journal found that chicken soup has anti-inflammatory effects that can help reduce the severity of upper respiratory tract infections, such as the common cold. The study suggests that chicken soup may reduce inflammation in the body by inhibiting the movement of immune cells to sites of inflammation.

 

Chicken soup is also a good source of protein, which is essential for repairing and building new tissues in the body. Protein helps support the immune system by providing the body with the necessary building blocks to produce immune cells that can fight off infections.

 

Furthermore, chicken soup can be a good source of fluids, which is important for staying hydrated during a cold. Staying hydrated helps thin out mucus and reduces congestion, making it easier to breathe.

 

So, next time you're feeling under the weather, consider whipping up a warm bowl of chicken soup. It can help reduce inflammation, provide your body with necessary protein, and keep you hydrated, all of which can help you recover from a cold more quickly.

High Vitamin C Sources: (Vitamin C boosts immunity)

Vitamin C is well-known for its immune-boosting properties, and for good reason. Vitamin C helps stimulate the production of white blood cells, which are responsible for fighting off infections.

 

When it comes to fighting off the common cold, vitamin C is one of the most well-known nutrients. Vitamin C is an antioxidant that helps protect the body against harmful free radicals that can damage cells and weaken the immune system.

 

Studies have shown that vitamin C can help reduce the duration and severity of colds, and may even prevent them from occurring in the first place. One study published in the Cochrane Database of Systematic Reviews found that taking vitamin C supplements can reduce the incidence of colds in people exposed to cold environments or under heavy physical stress.

 

While taking supplements can be an option, getting your daily dose of vitamin C through whole foods is always the preferred route. There are many foods that are high in vitamin C, including citrus fruits such as oranges, lemons, and grapefruits, as well as other fruits like kiwis and strawberries. Vegetables such as bell peppers, broccoli, and spinach are also excellent sources of vitamin C.

One interesting fact about vitamin C is that it can be destroyed by cooking and processing. Therefore, it's best to consume vitamin C-rich foods raw or lightly cooked to get the most benefits from this nutrient. Consuming foods high in vitamin C can help boost your immunity, reducing your risk of getting sick or helping you recover faster if you do get sick.

 

So, make sure to incorporate plenty of vitamin C-rich foods into your diet, especially during cold and flu season. It can help keep your immune system strong and ready to fight off any viruses that come your way. Some great sources of vitamin C include oranges, kiwi, strawberries, and bell peppers.

 

Plenty of Fluids - Warm Teas or Lukewarm Water: (Hydration helps loosen mucus)

Staying hydrated is essential when you have a cold, as it can help thin out mucus and make it easier to clear out of your system. This can help alleviate congestion and reduce the severity of your symptoms. Additionally, dehydration can weaken your immune system, making it harder for your body to fight off the infection.

 

Warm teas, such as ginger or chamomile tea, can be especially beneficial for people with a cold. Ginger has anti-inflammatory properties and can help reduce inflammation in the body, while chamomile tea can help soothe a sore throat and promote relaxation. Adding a bit of honey to your tea can also provide additional relief for a sore throat and cough.

 

Lukewarm water is also a great option for staying hydrated while you're sick. Drinking cold water can constrict blood vessels and make your symptoms worse, while warm or lukewarm water can help soothe a sore throat and keep you hydrated without any negative effects.

 

One thing to keep in mind when drinking fluids is to avoid beverages that can actually worsen your symptoms. For example, alcohol and caffeinated beverages can dehydrate you and make it harder for your body to fight off the infection. Sugary drinks can also suppress your immune system, making it harder for you to recover.

 

In conclusion, the foods you eat can have a significant impact on how quickly you recover from a common cold. While it's important to avoid certain foods, such as sweets, dairy products, and ice-cold drinks, there are also specific foods that can help boost your immunity and speed up your recovery. By incorporating protein-rich chicken soup, high vitamin C sources, and plenty of warm fluids into your diet, you can give your body the nutrition support it needs to fight off infections and get back to feeling your best.

by Dr. Michal Domeny DNP, L.Ac, CD/N

Magnesium and Dementia : Can magnesium intake prevent dementia?

Nutrition Corner with Dr D 

Magnesium and Dementia : Can magnesium intake prevent dementia?

Magnesium and dementia are two words that may not seem to be related, but a recent study has found that they could be the key to promoting good brain health and reducing the risk of cognitive decline. Dementia is the seventh biggest killer globally and the second leading cause of death in Australia. It's predicted that the number of people diagnosed with dementia will more than double by 2050. As there is no cure for dementia, prevention is the best course of action, and one way to do that is through diet.

Researchers from the Australian National University's National Centre for Epidemiology and Population Health conducted a study on over 6,000 cognitively healthy participants aged 40 to 73 in the United Kingdom. The study found that people who consume more than 550 milligrams of magnesium each day have a brain age that is approximately one year younger by the time they reach 55 compared to someone with a normal magnesium intake of about 350 milligrams a day.

 

Lead author and PhD researcher Khawlah Alateeq said, "Our study shows a 41 per cent increase in magnesium intake could lead to less age-related brain shrinkage, which is associated with better cognitive function and lower risk or delayed onset of dementia in later life." The researchers suggest that a higher intake of magnesium in our diets from a younger age may safeguard against neurodegenerative diseases and cognitive decline by the time we reach our 40s.

The study also found that the neuroprotective effects of more dietary magnesium appear to benefit women more than men and more so in post-menopausal than pre-menopausal women, although this may be due to the anti-inflammatory effect of magnesium.

 

The study highlights the potential benefits of a diet high in magnesium and the role it plays in promoting good brain health. The study's findings suggest that a diet rich in magnesium can have numerous benefits for brain health.

 

Benefits of Magnesium

Magnesium is a mineral that is essential for optimal brain function. The nervous system relies on magnesium to carry out many of its functions, including neurotransmitter release, synaptic plasticity, and oxidative stress regulation.

 

Neurotransmitters are chemicals that help to transmit signals in the brain. Magnesium plays a crucial role in regulating the release of these neurotransmitters, which helps to ensure that the brain can communicate effectively with other parts of the body.

 

Synaptic plasticity refers to the ability of synapses (the connections between neurons) to change and adapt over time. This is an important aspect of learning and memory, and magnesium is involved in this process.

 

Oxidative stress is a process that occurs when there is an imbalance between the production of reactive oxygen species (ROS) and the body's ability to detoxify them. This can lead to damage to cells and tissues, including those in the brain. Magnesium helps to regulate oxidative stress by acting as an antioxidant and protecting cells from damage.

 

Magnesium also helps to reduce inflammation, which is believed to contribute to neurodegenerative diseases such as dementia.

Magnesium and inflammation in the brain

Inflammation is the body's natural response to injury or infection, but chronic inflammation can cause damage to tissues and organs over time. It's believed that chronic inflammation in the brain plays a role in the development of neurodegenerative diseases such as dementia.

 

Magnesium is known to have anti-inflammatory properties and may help reduce inflammation in the brain. Inflammation in the brain can be caused by a variety of factors, such as chronic stress, poor diet, and lack of exercise. When inflammation is reduced, it can help protect brain cells and improve cognitive function.

 

Studies have shown that magnesium can help reduce inflammation in the brain by inhibiting the production of inflammatory molecules known as cytokines. Cytokines are produced by the immune system in response to infection or injury, but they can also contribute to chronic inflammation.

In addition to reducing inflammation, magnesium has been shown to improve brain function in other ways. For example, magnesium helps regulate the production of neurotransmitters, which are chemicals that transmit signals in the brain. Low levels of magnesium have been linked to lower levels of the neurotransmitter serotonin, which is associated with depression and anxiety.

 

Magnesium and cognitive function

Furthermore, magnesium is involved in the production of energy in brain cells, which is essential for optimal brain function. Studies have shown that magnesium can help improve cognitive function in older adults and may help protect against age-related cognitive decline.

 

Overall, the anti-inflammatory properties of magnesium may play an important role in promoting good brain health and reducing the risk of neurodegenerative diseases such as dementia. Incorporating magnesium-rich foods such as spinach, nuts, and whole grains into your diet may be an effective way to improve brain health and reduce the risk of cognitive decline.

Magnesium sources and supplements

The recommended daily intake of magnesium is between 310-420 mg for adults, with an average daily intake of around 300 mg for most people.

 

Magnesium can be found in a variety of foods, including spinach, nuts, legumes, seeds, and whole grains. These foods are rich in magnesium, with spinach containing around 157 mg of magnesium per cup, almonds containing 80 mg per ounce, and black beans containing 60 mg per half-cup serving.

 

In addition to a magnesium-rich diet, magnesium supplements can also be beneficial for brain health. However, not all forms of magnesium supplements are created equal. The most beneficial and biologically available form of magnesium supplement is magnesium glycinate, which is absorbed well by the body and does not cause digestive issues.

Conclusion

In conclusion, the study shows the potential benefits of a magnesium-rich diet in reducing the risk of cognitive decline and neurodegenerative diseases such as dementia. It suggests that people of all ages should be paying closer attention to their magnesium intake and incorporating magnesium-rich foods into their diets. Prevention is key in promoting good brain health, and a diet high in magnesium is one way to achieve that.

 

References 

Khawlah Alateeq, Erin I. Walsh, Nicolas Cherbuin. Dietary magnesium intake is related to larger brain volumes and lower white matter lesions with notable sex differences. European Journal of Nutrition, 2023; DOI: 10.1007/s00394-023-03123-x

 

Magnesium : Alzheimer Drug Discovery Foundation 

by Dr. Michal Domeny DNP, L.Ac, CD/N