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.
Taking this into consideration, if your body has low iodine, and therefore makes energy more slowly, it makes you more prone to gaining weight. On the other hand, too much iodine has the opposite effect. But donât go running to the health food store to buy an iodine supplement to help you lose weight! Being overweight may be linked to low thyroid hormones in some cases, but sometimes it has nothing to with thyroid hormone levels.