Q. With reference to gluten, consider the following statements::
1.It is a mixture of proteins found in wheat, barley, rye, and oats..
2.Gluten causes both gastrointestinal and systemic problems in the human body.
3.Gluten proteins have high nutritional and biological value.
Which of the statements given above is/are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: A
Notes:

Statement 1 is correct: Gluten is a mixture of proteins found in wheat (and all of its species and hybrids, such as spelt, kamut, and triticale), as well as barley, rye, and oats.

Statement 2 is correct: Gluten may cause both gastrointestinal and systemic symptoms for those with gluten-related disorders, including coeliac disease (CD), non-coeliac gluten sensitivity (NCGS), gluten ataxia, dermatitis herpetiformis (DH), and wheat allergy.

Statement 3 is incorrect: Gluten proteins have low nutritional and biological value and the grains that contain gluten are not essential in the human diet.

Source: All India Radio