Enzyme Day
2nd October 2015

focus on «fructose»

Enzymes fulfil fundamental functions in our body. The marvel of the human body would not function without them …



A.o. Univ.-Prof. Dr. Michael Wolzt

A.o. Univ.-Prof. Dr. Michael Wolzt

University Clinic for Clinical Pharmacology, General Hospital – Medical University Vienna, Austria

An intolerance caused by an enzyme deficiency can affect the entire body – from the bowel to the head through to the skin. High blood pressure and arrhythmias are potential consequences of food intolerance. For non-alcoholic fatty livers, a correlation with a surplus of fructose is being discussed.
Prof. Dr.med. Brunello Wüthrich

Prof. Dr.med. Brunello Wüthrich

Specialist FMH for allergology, clinical immunology and dermatology, Zollikerberg Hospital, Switzerland

Enzyme deficiency, intolerance, allergy – a precise differentiation is difficult for many people, but it is essential: Thus, the histamine intolerance comprises a wide spectrum of symptoms similar to allergies. It is therefore sometimes called a “pseudoallergy”. Education is therefore particularly important. The purpose is to inform people that the cause is an (easily treatable) DAO enzyme deficiency and what the difference is to an allergy.
Dr. Joan Izquierdo

Dr. Joan Izquierdo

Hospital General de Catalunya und Universitat Internacional de Catalunya, Barcelona, Spain

The symptoms of an enzyme deficiency syndrome usually occur in different combinations and can often not be clearly classified. This makes diagnoses difficult. A study showed that a DAO enzyme deficiency, known as histamine intolerance, may also be responsible for migraine symptoms. This result shows us once again that many health problems are the result of an enzyme deficiency.



An international study performed for Enzyme Day illustrates the state of knowledge regarding the topic of enzymes and how widespread the problem of enzyme deficiencies is in society.

What are enzymes?

The classical definition of an enzyme is: In the living cell, proteins are generated (enzymes) that are like a catalyst for chemical processes. Enzymes are involved in every metabolic reaction in the human body and are considered the “spark plugs” of metabolism. They convert nutrients into energy and cell components, they destroy toxins absorbed by the body from the environment, heal wounds and successfully protect us against illnesses. Without enzymes, vitamins, minerals and hormones cannot fulfil their tasks and without them, the marvel of the human body would not function. The lack of a certain enzyme (either genetic or developed throughout life) is therefore the cause of many health problems.

Enzyme deficiency

Symptoms such as bowel problems, headaches, skin changes, itching, asthma attacks, fever, depression, fatigue, hyperactivity, dizziness, high blood pressure, increased blood glucose, increased lipids or non-alcoholic fatty liver, that present in a variety of combinations, are often indicators of an enzyme deficiency syndrome

Share Button