According to the doctor Elena Shchetinina, the existing allergy to greens can make the use of this product extremely dangerous.
The doctor Shchetinina explained in an interview which people are harmful eat greens
“Parsley, onions, spinach, watercress and other greens contain vitamins A, B, K, ascorbic acid, and dietary fiber of these products, slow down the absorption of liquids, cholesterol, carbohydrates. However, there is a group of people who are better off not using these plants, ”said the doctor.
Schetinina explained that greens are contraindicated for people who develop allergic reactions in response to eating them.
Besides, eating greens is harmful. leafy foods in the presence of intolerance.
“Food intolerance differs from allergies in that it is temporary and does not lead to mortality.”
It is also harmful to eat greens if there are diseases or chronic disorders in the digestive system.
- Gastritis.
- Stomach ulcer.
- Urolithiasis.
- Pancreatitis.
Shchetinina warned that a generous portion of greens eaten in the case of each of the listed diseases can contribute to an exacerbation, the appearance of painful, severe symptoms.
You should also use greens with caution during pregnancy. The specialist explained that the bioactive substances contained in it can provoke unnecessary increased excitability of the fetus.
Earlier, the MedikForum.ru portal wrote about which cereals are not recommended by doctors for breakfast. 
Elena Shchetinina healthy lifestyle nutritionist- endocrinologist