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.
A Little Weight Loss Help. Once your physician has diagnosed an underactive thyroid, the next line of treatment in most cases is a thyroid hormone regimen. Individuals with hypothyroidism usually have to take hormones to keep the thyroid functioning normally. common symptom of an underactive thyroid -- or hypothyroidism -- is weight gain. There is no quick fix to help you slim down, but medication and a healthy diet may help.