Frequently Asked Questions about REZCUE

Frequently Asked Questions about REZCUE

In this article we ask THERA Nordic co-founder and renowned supplement formulator, Joni Laiho, some of the most commonly asked questions about our flagship gut health product, REZCUE


Are there scientific studies that show the benefits of taking Zinc Carnosine?

Yes, it has been extensively researched in dozens of scientific studies, including several human clinical studies.

Are there any known side effects of taking REZCUE?

Moderate Side Effects
Nausea: The most frequently reported side effect, particularly when taken on an empty stomach in the morning. This is harmless and transient. We advise to take the morning dose with a small amount of food if this occurs, this resolves the issue in the vast majority of cases without needing to reduce dose.

Very rare Side Effects

  • Bloating
  • Diarrhoea
  • Abdominal discomfort
  • Rash or itching

These are uncommon and typically self-resolving. If persistent, a dose reduction is the appropriate first step.

Glutamine and Neurological Sensitivity
L-Glutamine is a precursor to glutamate, an excitatory neurotransmitter. In sensitive individuals, particularly those with pre-existing anxiety, glutamate sensitivity, or MSG sensitivity, excess glutamate activity may produce:

  • Anxiety or agitation
  • Heightened nervous system activation

This is rare but worth flagging for patients with a relevant history. If it occurs, dose reduction or switching to HEALIA (a glutamine-free alternative with comparable mucosal repair activity) is appropriate.

As with other zinc-containing supplements, very high or prolonged zinc intake can affect copper levels. This is uncommon at recommended intakes and is reversible by reducing or stopping zinc supplementation.

L-glutamine is generally well tolerated, although a small number of people may experience mild digestive discomfort, nausea or dizziness. If this happens while using REZCUE, try reducing the dose and taking it with food.

Can I take REZCUE alongside other medication I am using?

You will need to consult your doctor as it is possible that Zinc and Glutamine may have contradicting effects with your medication.

Can I take other zinc supplements while using REZCUE?

Yes, you can. The daily recommended dose of REZCUE contains 16mg of zinc, which is 106% of an average adults recommended daily allowance (RDA). However, the National Institute of Health considers 40mg of zinc a day to be the upper limit dose for adults.

Can I use REZCUE continuously or do I need to have breaks between doses?

The product can be consumed very safely on a continual basis. However, many people find after one or two jars that they no longer need to take it.

Can REZCUE be mixed with hot water?

Yes, the supplement works well when mixed with hot water. However, we would recommend that you avoid mixing it with water that has just boiled.

Why does my scoop say 4ml but the dose is 2.5 grams?

This is because volume is not the same as weight. 4ml of the powder weighs 2.5 grams.

Is it vegan-friendly and gluten-free?

REZCUE is suitable for vegans, and it does not contain gluten, making it a versatile option for various dietary preferences.

Can I use REZCUE while pregnant or when breastfeeding?

Since there have been no scientific studies carried out to provide data on either the benefits or any harmful effects of Zinc Carnosine on pregnancy or breast feeding we recommend that you consult your practitioner for advice before you start.

Can I give REZCUE to my children?

Although there could be benefits, we recommend that you consult a qualified healthcare professional before administering any supplements to children.

Can I give REZCUE to my pets?

Yes, both Zinc Carnosine and Glutamine are safe for dogs, cats and horses. However, we would recommend that you consult your vet before giving any supplements to your pets, and to check the recommended daily allowances of zinc for your pet.

I have CKD (Chronic Kidney Disease). Is it still ok to take REZCUE?

We advise that you do not take REZCUE is you have a CKD (Chronic Kidney Disease).

I have a severe liver disease. Is it still ok to take REZCUE?

We advise that you do not take REZCUE is you have severe liver disease.