ID 274 - Jod

PL: Jod
EN: Iodine
Pdf: iodine

Oświadczenie (4)

Oświadczenie (2)

1. Charakterystyka żywności / składnika

The food constituent that is the subject of the health claims is iodine, which is a well recognised nutrient and is measurable in foods by established methods.
Iodine occurs naturally in foods and is authorised for addition to foods (Annex I of the Regulation (EC) No 1925/20064 and Annex I of Directive 2002/46/EC5). This evaluation applies to iodine naturally present in foods and those forms authorised for addition to foods (Annex II of the Regulation (EC) No 1925/2006 and Annex II of Directive 2002/46/EC).
The Panel considers that the food constituent, iodine, which is the subject of the health claims, is sufficiently characterised.

2.1. Funkcjonowanie tarczycy i produkcja hormonów tarczycy (ID 274)

The claimed effects are “thyroid function” and “production of thyroid hormones”. The Panel assumes that the target population is the general population.
The Panel considers that normal thyroid function and normal production of thyroid hormones are beneficial to human health.

2.2. Metabolizm energetyczny (ID 274)

The claimed effect is “energy metabolism”. The Panel assumes that the target population is the general population.
The Panel considers that normal energy-yielding metabolism is beneficial to human health.

3. Naukowe uzasadnienia wpływu na zdrowie człowieka - 

Iodine is an essential constituent of the thyroid hormones, which have important modifying or permissive roles in growth and development and there is a large body of evidence indicating a crucial role for iodine in growth and development (Sadler et al., 1999; IoM, 2002; Garrow et al., 2000; Strain and Cashman, 2002). A wide spectrum of iodine deficiency disorders (IDD) have been observed, depending on the degree of deficiency and the life stage at which the deficiency occurs. These disorders range from mild goitre to the most severe forms of endemic cretinism (congenital, severe, irreversible mental and growth retardation). Other symptoms of severe IDD (arising from iodine deficiency in the foetus) include deaf-mutism, squint, disorders of stance and gait, and dry skin and swollen subcutaneous tissue (Delange, 2000; EVM, 2003; WHO, 2007).

3.1. Funkcjonowanie tarczycy i produkcja hormonów tarczycy (ID 274)

Iodine is an essential dietary element for mammals being required for the synthesis of the thyroid hormones thyroxine (T4, 3,5,3',5'-tetraiodothyronine), containing 65 % by weight of iodine, and its active form T3 (3,5,3'-triiodothyronine), containing 59 % by weight of iodine, as well as the precursor iodotyrosines (SCF, 2002).
The Panel concludes that a cause and effect relationship has been established between the dietary intake of iodine and normal thyroid function and normal production of thyroid hormones.

3.2. Metabolizm energetyczny (ID 274)

The biological function of the thyroid hormones T4, T3 and of iodotyrosines encompasses the regulation of energy-yielding metabolism and endocrine function by cellular oxidation, calorigenesis,
thermo-regulation, intermediate metabolism, protein and enzyme synthesis, nitrogen retention, gluconeogenesis and pituitary gonadotropins (SCF, 2002).
The Panel concludes that a cause and effect relationship has been established between the dietary intake of iodine and normal energy-yielding metabolism.

4.1. Funkcjonowanie tarczycy i produkcja hormonów tarczycy (ID 274)

The Panel considers that the following wording reflects the scientific evidence: “Iodine contributes to the normal production of thyroid hormones and normal thyroid function.”

4.2. Metabolizm energetyczny (ID 274)

The Panel considers that the following wording reflects the scientific evidence: “Iodine contributes to normal energy-metabolism.”

5. Warunki i możliwe ograniczenia stosowania oświadczenia

The Panel considers that in order to bear the claims a food should be at least a source of iodine as per Annex to Regulation 1924/2006. A Tolerable Upper Intake Level (UL) has been established for iodine as 600 μg/day in adults and during pregnancy and lactation. For children and adolescents UL was established as 200 μg/day for 1-3 years, 250 μg/day for 4-6 years, 300 μg/day for 7-10 years, 450 μg/day for 11-14 years and 500 μg/day for 15-17 years (SCF, 2002). The target population is the general population.

Warunki i możliwe ograniczenia stosowania oświadczenia

Must at least be a source of mineral/s as per annex to regulation 1924/2006