KBB-Forum 2018 , Cilt 17, Sayı 2

EFFECTS OF FASTING AND SATIETY ON THYROID HORMONE VALUES

Birgül TUHANİOĞLU, MD; Sanem Okşan ERKAN, MD; Talih ÖZDAŞ, MD;Orhan GÖRGÜLÜ, MD; Zekiye GÜNEY, MD
Health Sciences University Adana City Research and Training Hospital, Adana, Turkey Aim: In our study, we thought that the thyroid hormone levels could be affected by the food and we investigated the changes that may occur in measurements made as fasting or satiety in different time zones.

Method and Materials: FT3, FT4, TSH values of 66 adult subjects included in the study were measured between 08:00 and 08:30 and the same tests were repeated 2 hours after breakfast. In order to investigate the effect of the time factor on the thyroid hormone, postprandial blood was taken at 8:00 am after breakfast at 6:00 am the next day.

Results: The FT4 levels increased and FT3 and TSH level was decreased during satiety at the same day.

Conclusion: Thyroid hormones should be checked at the same time and during fasting in the morning for each control. Keywords : Fasting, satiety, time, thyroid hormones, diurnal rhythm