RNA. A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses.
Underactive thyroid Photo Credit George Doyle/Stockbyte/Getty Images. It's hard to lose weight when your metabolism slows down, but there are things you can do. The thyroid, a butterfly-shaped gland in your throat, produces hormones that regulate many bodily functions, including metabolism.ollow a low-calorie diet. Anyone who wants to lose weight must burn more calories than are consumed. Unfortunately, for someone with an underactive thyroid, it can be difficult because the metabolism slows, meaning the body naturally burns fewer calories.
The best way to find out if your thyroid gland is underactive is to take your basal body temperature, which is your temperature when at complete rest. Take your temperature by mouth for three days in a row, first thing in the morning before you get out of bed.o perform its function properly, the thyroid needs sufficient quantities of trace minerals like zinc, copper, selenium, iron, and particularly iodine: as well as adequate amounts of vitamins such as A, C, E and the B vitamins. If the thyroid does not get the nutrition it needs an underactive thyroid can be the result.