According to these studies, a protein intake around 30% of calories may be optimal for weight loss. This amounts to 150 grams per day for someone on a 2000 calorie diet. You can calculate it by multiplying your calorie intake by 0.075.
When we look at hormones that have other endocrine glands as their target we call them tropic hormones. The four tropic hormones of the anterior pituitary gland are: follicle-stimulating hormone (FSH), luteinizing hormone (LH), adrenocorticotropic hormone (ACTH), and thyroid-stimulating hormone (TSH).
Thyrotropin-releasing hormone, also called thyrotropin-releasing factor or thyroliberin, is a releasing hormone, produced by the hypothalamus, that stimulates the release of thyrotropin and prolactin from the anterior pituitary. It is a tropic, tripeptidal hormone. TRH has been used clinically for the treatment of spinocerebellar degeneration and disturbance of consciousness in humans. Its pharmaceutical form is called protirelin.