Influence of meal composition on the postprandial response of the pituitary–thyroid axis

in European Journal of Endocrinology
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Kamat V, Hecht WL, Rubin RT. Influence of meal composition on the postprandial response of the pituitary–thyroid axis. Eur J Endocrinol 1995;133:75–9. ISSN 0804–4643

Ingestion of food can result in an acute decline of serum thyrotropin (TSH) concentrations, but it is not known whether meal composition and/or stomach distension are influential. Normal men and women were given a normocaloric or hypocaloric, isobulk meal at lunch and at dinner in a randomized design. The normocaloric, but not the isobulk, meal resulted in a significant decline in serum TSH at both lunch and dinner; thyroid hormones and cortisol were not affected significantly. These findings suggest that meal composition is influential in the acute postprandial decline of serum TSH in man. A possible mechanism is food-induced elevation of somatostatin and consequent suppression of TSH secretion.

Robert T Rubin, Neurosciences Research Center, Allegheny General Hospital, 320 E North Ave. Pittsburgh, PA 15212-4772, USA

 

     European Society of Endocrinology

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