Broccoli Microgreens: The Secret to a Strong Immune System

Broccoli microgreens are a relatively new addition to the world of superfoods, but they have quickly become a popular choice among health enthusiasts. These tiny greens are packed with nutrition, making them a powerful tool in boosting the immune system. In this article, we’ll explore the nutritional value and benefits of broccoli microgreens, as well as how to grow them and incorporate them into your diet.

broccoli microgreens

“Let food be thy medicine and medicine be thy food.” – Hippocrates

Before we dive into the specifics of broccoli microgreens, let’s talk about the immune system. Our immune system is responsible for protecting our bodies from disease and illness. It’s our body’s defence mechanism, and without it, we would be constantly susceptible to infection and sickness. Therefore, it’s crucial to maintain a strong and healthy immune system.

One way to do this is through our diet. As the quote from Hippocrates suggests, the food we eat can be our medicine. By consuming nutrient-dense foods, we can provide our bodies with the tools it needs to fight off infection and stay healthy.


Nutritional Value of Broccoli Microgreens

Broccoli microgreens are young broccoli plants that are harvested at just a few weeks old. Despite their small size, they pack a powerful nutritional punch. There are many other types of microgreens such as sunflower, peas or radish, but broccoli microgreens are considered one of the most nutrient dense. Here are some of the key nutrients found in broccoli microgreens:



Broccoli microgreens are high in vitamins C, E, and K. Vitamin C is known for its immune-boosting properties, while vitamin E acts as an antioxidant and helps protect the body’s cells from damage. Vitamin K plays a role in blood clotting and bone health.



Broccoli microgreens are also rich in minerals such as potassium, calcium, and magnesium. Potassium is essential for regulating blood pressure and maintaining proper heart function. Calcium is crucial for bone health, while magnesium plays a role in energy production and muscle function.



Broccoli microgreens are a great source of antioxidants, which help protect the body’s cells from damage caused by free radicals. This, in turn, can help prevent chronic diseases such as cancer and heart disease.


Benefits of Broccoli Microgreens for Immune System

Now that we’ve established the nutritional value of broccoli microgreens, let’s talk about how they can benefit the immune system specifically.


Anti-Inflammatory Properties

Broccoli microgreens contain high levels of sulforaphane, a compound that has anti-inflammatory properties. Inflammation is a natural response to infection and injury, but chronic inflammation can lead to a variety of health problems, including a weakened immune system. By consuming foods that have anti-inflammatory properties, we can help keep inflammation in check and support a healthy immune system.


Cancer-Fighting Properties

In addition to their anti-inflammatory properties, broccoli microgreens also contain compounds that have been shown to have cancer-fighting properties. Sulforaphane, for example, has been found to help prevent the formation and growth of cancer cells. Other compounds found in broccoli microgreens, such as glucoraphanin and diindolylmethane (DIM), have also been linked to a reduced risk of cancer.


Detoxification of Body


Broccoli microgreens contain compounds that support the body’s natural detoxification process. One of these compounds is chlorophyll, which helps remove toxins and heavy metals from the body. Additionally, the fiber found in broccoli microgreens can help support regular bowel movements and aid in the elimination of toxins.



How to Grow Broccoli Microgreens at Home

Broccoli microgreens are a great variety to grow, especially for beginners. They grow quickly and consistently throughout the year. However, there are a few potential challenges you may face, such as excessive moisture and mould growth. We’ll cover the best practices for growing and harvesting broccoli microgreens to ensure a successful harvest.


Potential Challenges in Growing Broccoli Microgreens

Broccoli microgreens require a high planting density, which can lead to excessive moisture buildup, especially in humid growing spaces. To prevent this, you can use clip-on fans on the shelving units to keep them dry while growing. Additionally, using a dehumidifier in your room can help if humidity exceeds 60%.

After harvesting, it’s important to dry the shoots completely before packaging them. Wet shoots in packaging will drastically limit the shelf life of your harvest.


Growing Method for Broccoli Microgreens

To grow one tray of broccoli shoots, follow these simple steps:


Before Planting

  • Take a seed tray with drainage holes and fill it with approx. 2 inches of compost.
  • Tamper the soil down to flatten it with a wooden tamper or something flat and the same size as your tray. This creates an even surface for seed sowing.
  • Place the tray inside another tray without drainage holes – this will be your watering tray.

Planting the Seed

  • Weigh out 15g of dry broccoli seed and sprinkle it evenly across the top of the compost.
  • Water thoroughly with a gardener’s water sprayer.
  • After planting, place an empty seed tray on top and weight it down with something (such paving bricks). This is to force even germination, so your shoots will grow as uniformly as possible.
  • If you have more than one tray, stack them on top of each other, no more than 5 trays high.
trays with broccoli

Let Them Grow

  • When the shoots are about 1cm tall, they will start to push the tray and weight up (after 2-3 days).
  • At this point, remove the weight and top tray and move your planted trays to their growing position – either under grow lights or on a sunny windowsill.
  • Give them a good water in the bottom tray and then every couple of days or when the water has all gone.
  • Let them grow! Around 4 cm is a good height for broccoli shoots, which will take 7-9 days, depending on the temperature of your grow space.

Harvesting Method for Broccoli Microgreens

When your broccoli microgreens reach the desired height of around 4cm, it’s time to harvest them. Here’s how to do it:

  • Cut the microgreens with clean, sharp scissors or a knife.
  • Dry them off under a fan if needed.
  • Package them up in a clean, dry, airtight container and pop them in the fridge.
  • You can freeze broccoli microgreens. However, when defrosted they loose their structure so best add them still frozen to your soups, smoothies or omelettes. 

With these simple steps, you’ll be able to grow and harvest delicious and nutritious broccoli microgreens in no time!

Growing and harvesting broccoli microgreens can be a fun and rewarding experience. With the right tools and techniques, you can ensure a successful harvest and enjoy the health benefits of this nutritious plant. Remember to keep the soil moist but not too wet, provide adequate airflow, and dry your shoots completely before packaging them. 



Recipes and Tips for Incorporating Broccoli Microgreens into Your Diet

Broccoli microgreens can be a delicious and nutritious addition to a variety of dishes. Here are some ideas for incorporating them into your diet:


Smoothie Recipe

  • 1 cup spinach
  • 1/2 cup broccoli microgreens
  • 1/2 cup frozen berries
  • 1 banana
  • 1 cup almond milk

Blend all ingredients together in a blender until smooth.

broccoli microgreens smoothie

Salad Recipe

  • Mixed greens
  • Broccoli microgreens
  • Cherry tomatoes
  • Avocado
  • Grilled chicken
  • Balsamic vinaigrette

Toss all ingredients together in a bowl and enjoy.


Stir-Fry Recipe

  • Broccoli microgreens
  • Carrots
  • Snow peas
  • Bell peppers
  • Tofu or chicken
  • Soy sauce
  • Garlic

Stir-fry all ingredients together in a pan until cooked through.


Precautions and Risks of Consuming Broccoli Microgreens

While broccoli microgreens are generally considered safe for consumption, there are a few things to keep in mind:


Potential Allergies

Some people may be allergic to broccoli or other cruciferous vegetables, which could cause an allergic reaction to broccoli microgreens as well. If you have a known allergy, be cautious when trying broccoli microgreens for the first time.


Avoiding Contamination

As with any type of produce, it’s important to handle broccoli microgreens safely to avoid contamination. Make sure to wash them thoroughly before consuming, and store them in a clean, dry place.



Broccoli microgreens are a nutrient-dense food that can provide a wide range of health benefits, particularly for the immune system. With their high levels of vitamins, minerals, and antioxidants, broccoli microgreens are a powerful tool in maintaining a strong and healthy body. By growing them at home and incorporating them into your diet, you can take advantage of all the benefits they have to offer.





1. Can broccoli microgreens be used in place of regular broccoli?


While broccoli microgreens have many of the same nutritional benefits as regular broccoli, they are not a substitute for the whole vegetable. It is still important to incorporate a variety of fruits and vegetables into your diet.


2. Can broccoli microgreens be consumed raw?


Yes, broccoli microgreens can be consumed raw in salads, smoothies, and sandwiches, or used as a garnish.


3. Can broccoli microgreens be frozen?


Yes, but it is not recommended to freeze broccoli microgreens, as it can affect their texture and flavour.


4. Are there any specific health conditions that broccoli microgreens are beneficial for?


Broccoli microgreens have been shown to have a positive impact on a wide range of health conditions, including inflammation, cancer, and cardiovascular disease.


5. Can broccoli microgreens be grown indoors?


Yes, broccoli microgreens can be grown indoors using a growing tray and a light source, making them a great option for year-round cultivation.


6. How do I store broccoli microgreens?


To store broccoli microgreens, rinse them gently under cold water, then pat dry with a paper towel. Place them in an airtight container or resealable bag and store in the refrigerator for up to 5 days.


7. How can I tell if my broccoli microgreens are fresh?


Fresh broccoli microgreens should have bright green leaves that are crisp and firm. Avoid microgreens that are wilted, slimy, or have a foul odour.


8. Can I grow broccoli microgreens from regular broccoli seeds?


While it is possible to grow broccoli microgreens from regular broccoli seeds, it is recommended to use seeds specifically labelled for microgreens for optimal growth and flavour.


9. How long does it take to grow broccoli microgreens?


Broccoli microgreens typically take between 7-14 days to grow, depending on the growing conditions and variety of seed used.


10. Are there any risks associated with consuming broccoli microgreens?


While broccoli microgreens are generally considered safe to consume, it is important to wash them thoroughly before eating to reduce the risk of bacterial contamination. Additionally, individuals with thyroid conditions may want to limit their consumption of cruciferous vegetables, including broccoli microgreens, due to their goitrogenic properties.

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