If it feels like everyone you know has come down with the stomach flu recently, you’re not imagining it. For the first time in a while, a new strain of norovirus is making the rounds, and as a result, more people than ever have been hit with the unpleasant symptoms of vomiting, diarrhea, and nausea. It can be a tough 24-48 hours, and once the worst has passed, many are left wondering what they can safely eat or drink without upsetting their still-sensitive stomachs.

If you’ve been wondering if matcha is ok to drink after the stomach flu, we’ve got your answer!

What is the stomach flu?

The stomach flu, or gastroenteritis, is an infection of the stomach and intestines and results in symptoms such as vomiting, diarrhea, nausea, abdominal cramps, and sometimes fever. Despite its name, it’s not actually related to the flu. Many viruses can cause gastroenteritis, but the most common culprits are norovirus and rotavirus, along with a handful of others. Stomach bugs tend to be highly contagious and can be hard to kill, especially norovirus. The best cure for the stomach flu is time, but self-care measures, like staying hydrated, resting, and allowing your tummy to settle before eating solid foods, are also helpful.

While you’re sick, your body may lose fluids and electrolytes quite rapidly, which can leave you dehydrated and feeling weak. The temporary inflammation of your gut can also make digestion difficult and may lead you to feel nauseous when you reintroduce foods and liquids, even after the infection is gone. It’s not uncommon for your digestive system to need a bit of time to fully bounce back. You may experience some lingering stomach sensitivity, reduced appetite, or fatigue. This is where matcha may be helpful.

How can matcha help

Matcha, which is a powdered form of green tea, is a concentrated source of antioxidants and amino acids and contains a moderate amount of caffeine. If you’re recovering from the stomach flu, matcha may offer a few benefits when reintroduced at the right time.

One of the things that makes matcha so special is its EGCG content. EGCG is a powerful antioxidant that has anti-inflammatory and immune-boosting properties. On average, matcha contains more EGCG than regular green tea, which can help calm gut inflammation post-stomach flu and support your body’s natural defenses.

Matcha also contains the amino acid L-theanine, which promotes a calm, relaxed feeling, without drowsiness. This can be especially helpful after a few rough days of feeling sick or being up at night. L-theanine may even help ease the nervous system’s role in digestive upset. One study also found that L-theanine can help reduce inflammation in the intestinal tract, which may be especially helpful and needed after being sick.

The combination of caffeine and L-theanine found in matcha offers an energy boost without the jangling feeling associated with other caffeinated drinks. This gentle energy may be very needed after a few days of feeling sick and fatigued.

However, some might need to hold off on drinking matcha for a week or so after getting a stomach bug. Drinking matcha on an empty stomach, especially after your digestive system has been under stress, can lead some to feel nauseous or queasy. This may be from the tannins and caffeine, which can stimulate acid production. If you’re one of these people, it may be best to wait a few days before introducing matcha back into your diet, and when you do, have it with a small meal.

How to reintroduce matcha after the stomach bug

Timing is everything if you’ve been down and out with gastroenteritis. Your digestive system will be in recovery mode for a few days, so it’s best to wait until you can tolerate solid foods without nausea, cramping, or discomfort before reintroducing matcha or anything with caffeine.

Once you’re ready, here are a few tips for reintroducing your matcha back into your routine:

- Start small. If you’re tummy is still feeling off, begin with just ½ teaspoon of matcha powder and gradually increase until you’re back to your usual serving.

- Pair it with food. Drinking matcha on an empty stomach can be irritating for some. Instead, enjoy it alongside something bland and gentle, such as toast, oatmeal, or a banana.

-  Listen to your body. If you are still feeling nauseous or have any other digestive symptoms, give your body a bit more time before bringing it back.

- Choose a high-quality matcha. If you’re drinking it, always opt for a ceremonial grade powder, which will have a smoother, more balanced taste. High-quality matcha tends to have more health benefits than low-quality matcha.

-  Add coconut water to your matcha for additional electrolytes and antioxidants.

- Add ginger to your matcha to help soothe your stomach. Try our aged black ginger powder!

Bottom Line

Matcha can’t cure or prevent the stomach flu, but it does contain compounds like EGCG and L-theanine, which may help soothe your digestive system and reduce inflammation after the stomach flu. It can also give you a much-needed energy lift. However, timing matters. It may be best to wait to drink matcha again until you’re able to tolerate some solid foods. Go slow and listen to your body. When you do decide it’s time to start drinking matcha again, have a cup alongside a small meal. Just remember, matcha isn’t a replacement for proper rest, hydration, or medical care.

Disclaimer*
These statements in this blog post have not been evaluated by the Food and Drug Administration. The information provided here is for educational purposes only and should not be considered as medical advice. It's essential to consult with a qualified healthcare professional before making any dietary or lifestyle changes

Resources:

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