Vitamin food sources and functions, rainbow wheel chart with food icons, healthy eating and healthcare concept

15 Nutrients That Are A Blessing To Your Immune System

Did you know that the foundation of a robust immune system lies in the nutrients you consume? Nutrition for immunity is a deal breaker.

A study published in the “Journal of the American Dietetic Association” emphasizes the pivotal role of proper nutrition in enhancing immune response and overall health. 

Discover the best immunity boosting foods and the significance of nutrition in strengthening your body’s defense mechanism in this article.

Importance Of Nutrition For Immunity:

nutrition for immunity

Image Source: Pixabay

As Dietitians, we do get a lot of questions like – ‘How do I improve my immunity in a month’s time?’ or ‘Will taking vitamin C supplements help me avoid all viral and bacterial infections?’ etc. 

To stay away from infections, you need a strong immune system. But immunity cannot be improved with just consuming lemon water or taking vitamin supplements! How do we make sure we are doing everything we can to keep our immunity robust? 

Nutrients play a pivotal role in building our immune system. To make sure our immune system is robust, we must eat a variety of foods to get a variety of essential nutrients. 

Nutrients which will help your immune system function better.

Recommended Read: 12 Ways to be Physically Fit in 2023

7 Nutrients That Enhance Immunity

1. Vitamin D: 

Vitamin D is known for its role in improving our immunity, especially against the diseases and infections targeting our lungs! Very few foods naturally have vitamin D. 

Fatty fish such as salmon, tuna, and mackerel are among the best sources. Fortified foods like milk provide most of the vitamin D. 

Sun exposure between 10 am and 3 pm for 10 to 15 minutes on a clear day, without sunscreen is the best source since Vitamin D is synthesized on the skin. 

2. Vitamin C: 

vitamin c from oranges

Image Source: Pixabay

Vitamin C is known for its antioxidant properties and is abundantly available in a variety of fruits and vegetables. 

Red peppers, orange juice and oranges, grapefruit, kiwi, green capsicum, broccoli, strawberries (these foods are highest on the list providing 50-95 mg of Vitamin C per serving). 

The Daily Value % of Vitamin C is 60 mg for children older than 4 years and adults. 

3. Vitamin A

It is known to help fight off infections and give a boost to the fighter cells in our body. 

Orange vegetables and fruits like sweet potato, carrots, spinach, greens, papaya, musk melon, egg yellows, dairy products and seafood. 

4. Zinc:

Our immune system needs zinc for defense against bacteria and viruses. Zinc is also known as the healer nutrient, since it plays an important role in wound healing. 

While you can get zinc from plant sources like sesame, pumpkin seeds, chickpeas, lentils, and cashews, zinc is best absorbed from sea foods like oysters, crab and lobster. Animal sources include beef and pork. 

5. Selenium: 

selenium from cottage cheese

Image Source: Pexels

This is another antioxidant nutrient which helps make our immune system stronger. 

It helps reduce oxidative stress and inflammation in our body. Food sources include fish, eggs, chicken, cheese, cottage cheese, nuts, sunflower seeds, mushrooms and oats. 

6. Iron:

iron from leafy green vegetables

Image Source: Pexels

Iron, available in lean meats, beans, and leafy greens, is essential for maintaining healthy immune cells. It plays a role in carrying oxygen to cells, aiding in their optimal function

7. Probiotics:

A healthy gut is closely linked to a strong immune system. Probiotics, found in yogurt, kefir, and fermented foods, promote a balanced gut microbiome, enhancing immune function and supporting overall well-being.

8. Omega-3 Fatty Acids:

In the heart of fatty fish like salmon and flaxseeds lies omega-3 fatty acids, known for their anti-inflammatory prowess. They lend a hand in immune balance.

9. Vitamin E:

vitamin e from nuts

Image Source: Pexels

Nuts, seeds, and spinach shine with vitamin E, an antioxidant guardian that protects immune cells from damage, ensuring their efficient operation.

10. B Vitamins:

Whole grains, poultry, and eggs supply B vitamins, each with its unique role in supporting immune function. Vitamin B6, for instance, influences immune cell activity.

11. Vitamin K:

Found in spinach, kale, and broccoli, vitamin K contributes to immune health by aiding proper blood clotting and supporting bone health.

12. Magnesium:

magnesium from leafy green vegetables

Image Source: Pixabay

Leafy greens, nuts, and whole grains are rich in magnesium, a mineral that assists immune cell communication and overall immune system coordination.

13. Copper:

Lentils, beans, and nuts offer copper, which supports the formation of immune cells and ensures their effective response.

14. Vitamin B12:

Abundant in animal products, vitamin B12 plays a role in immune cell production and maintaining overall immune system balance.

15. Folate:

Avocado, legumes, and dark leafy greens provide folate, a B vitamin essential for cell division, including immune cells.

Recommended Read: The importance of knowing your body composition

Frequently Asked Questions:

How can I boost my immune system quickly?

Boosting your immune system quickly involves adopting certain habits and making dietary choices that support your body’s defense mechanisms. While there’s no instant solution, these practices can help enhance your immune response over time:

  • Stay hydrated
  • Eat a balanced diet
  • Prioritize sleep
  • Practice stress-relief techniques such as deep breathing, meditation, yoga, or engaging in hobbies you enjoy.
  • Exercise regularly 
  • Limit sugar and processed foods
  • Include immune boosting foods

Recommended Read: 10 Fitness Tips that actually work

What foods help fight infections?

Certain foods contain nutrients that can help strengthen your immune system and support your body in fighting infections. Including these foods in your diet can provide a natural defense against illnesses:

  • Citrus fruits like oranges, grapefruits, lemons, and limes
  • Garlic
  • Ginger
  • Turmeric
  • Berries
  • Yogurt and Fermented Foods
  • Almonds
  • Fatty fish like salmon, mackerel, and sardines that are rich in omega-3 fatty acids
  • Green Tea

Remember that a balanced and varied diet, along with a healthy lifestyle, is essential for supporting your immune system and overall well-being. 

Recommended Read: 6 Low Fat Protein Foods for Weight Loss

What vegetables are good for the immune system?

Several vegetables are known for their immune-boosting properties due to their rich content of vitamins, minerals, antioxidants, and phytochemicals. 

Some vegetables that are particularly good for the immune system are broccoli, spinach, bell peppers, carrots, sweet potatoes, garlic, cabbage, tomatoes and onions.

Final Word On Nutrition For Immunity:

The power of proper nutrition in fortifying your immune system cannot be overstated. By incorporating these seven essential nutrients into your diet, you can enhance your body’s ability to fend off infections and maintain optimal health. 

The best immune-boosting foods not only support your immune response but also contribute to your overall well-being. Remember, a well-nourished body is your greatest ally in the journey to a healthier, more resilient immune system.

Also Read:

References:

  • https://www.hsph.harvard.edu/nutritionsource/nutrition-and-immunity/ https://www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/support-your-immune-function-with-good-nutrition
  • https://member.1to1help.net/articles/Nutrition-for-a-Happy-You/Mjg5
  • https://member.1to1help.net/articles/10-Nutrition-Guidelines-for-your-Child-s-Health/Nzg0
  • https://member.1to1help.net/articles/10-reasons-why-your-body-needs-healthy-foods-/MTA3Nw==
Get to know your body and soul - inspirational handwriting on textured paper

The importance of knowing your body composition

The weighing scale can be a friend to some and not so friendly to others! When we weigh ourselves, we may either be thrilled or not so happy with what we see. We sometimes tend to become obsessed with the numbers on the scale. But does that one solitary figure tell you the whole story about what is going on in your body? 

It is important to understand where the overall body weight is coming from. A person with a normal weight on a weighing scale can appear to be healthy on the outside but could have an unhealthy body composition. 

Let us now understand what body composition is

Body composition is the body’s amount of body fat to its fat-free mass. Fat-free mass comprises the bones, muscles, organs and tissue. A higher-than-normal body fat ratio can cause problems like diabetes, obesity, high blood pressure, etc. In some cases, those with high levels of body fat can also feel more fatigued.  This fat is usually found around the organs. Some fat is needed to provide the following functions- protection and cushioning, energy production and hormone regulation. For men, body fat needs to be 5% and for women the range is up to 12%. Men tend to have a leaner more muscular appearance, while women due to biological make-up, have more fat to sustain pregnancy and childbirth. 

It is important to know the breakdown of one’s weight, this also helps to determine other factors like bone strength, muscle mass and amount of body water present. A body composition weighing scale can help you understand your inner health, so you can make positive changes and monitor them over time. 

Body Fat Percentage: As we have seen, this needs to be in a healthy range specific for men and women. Too much fat can lead to diabetes, obesity, etc. and too little fat on the other hand can lead to osteoporosis, irregular periods and possible infertility. 

Visceral Fat: This fat surrounds the organs and helps protect them. As people age, this fat tends to shift towards the abdominal area. Too much can lead to lifestyle related diseases. 

Muscle Mass: This includes the weight of all the muscles in the body from the smooth muscles, skeletal muscles and the heart (cardiac) muscles. Muscles consume energy and help burn off calories effectively. This increases your Basal Metabolic Rate (calories burnt while at rest). Having more muscle helps reduce your body fat and also gives a more toned appearance to the body since a pound of muscle occupies less space than a pound of fat. Strength training builds and strengthens muscle.  

While exercising, your overall weight may be unchanged. This may be discouraging to someone who is trying to lose weight. But the body composition may tell a happier story. It could be because muscle is being built and fat is being lost that body weight remains the same. 

Total Body Water percentage: Is the amount of fluid present in the body. Water helps eliminate waste products and regulates body temperature. Being well hydrated helps boost performance and concentration levels. While being hydrated is important, do not drink high-calorie drinks or those with lots of sugar in them. Go for plain water/ infused water/ fresh unsweetened fruit juice/ tender coconut water or buttermilk as healthier nourishing options. 

For females, the water percentage should be between 45 to 60% 

For males, the water percentage should be between 50 to 65%. 

Bone Mass: This predicts your bone mineral density. Osteoporosis is common at later stages and bone deterioration is a gradual process. Weight-bearing exercises and a calcium-rich diet can prevent this. The bone mass weight varies between males and females and depends on one’s body weight. 

Basal Metabolic Rate (BMR): Basal Metabolic Rate takes into account the calories burnt while at rest. Having a high muscle mass will also increase the BMR. The more active you are, the more calories you will burn. Always aim for a high BMR.  

While we try to stay at a healthy weight and eat balanced meals, rarely do we get an idea as to how things like physical fitness and healthy eating impact our bodies on the inside. The next time you take your weight, get it done on a body composition weighing scale for an accurate picture of how healthy your body actually is. Take steps to move towards healthy ranges for each parameter by consulting your fitness trainer and a qualified nutritionist. 

With inputs from: 

  1. https://www.inbodyusa.com/blogs/inbodyblog/28828609-body-composition-101-the-beginners-guide 
  2. https://www.rockcreekwellness.com/blog/the-importance-of-body-composition-to-your-overall-health/ 
  3. https://blogs.bulknutrients.com.au/the-importance-of-body-composition/ 
  4. http://allaboutmannatech.com/5-reasons-why-body-composition-is-important-for-long-term-health/ 
  5. http://sparcathens.com/why-a-healthy-body-composition-is-important/ 
  6. https://www.livestrong.com/article/409122-how-does-body-mass-affect-the-cardiovascular-system/ 
  7. https://omronhealthcare.com/the-importance-of-a-body-composition-monitor/ 
  8. http://www.healthy.net/Health/Essay/Body_Composition_The_Most_Important_Fitness_Component/369 
  9. http://www.physiquescience.com.au/body-composition 
  10. https://tanita.eu/tanita-academy/understanding-your-measurements 
  11. https://www.verywellfit.com/what-is-body-composition-3495614
  12. https://www.webmd.com/fitness-exercise/what-is-body-composition

If you would like to discuss this further or need some help or support in this or any other area, our wellness coaches would be happy to help.

Online Counselling
Place an online request for an Appointment

Call 1800-258-8999 / 1800-258-8121

Request a call back

Understand what 1to1help can do to enhance your workforce wellbeing