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.
People who suffer from underactive thyroid need to know what to eat to regulate it, which will help them in reducing the symptoms of hypothyroidism. Eating the right foods also ensures that the metabolism is also increased, which is normally affected due to hypothyroidism.n this condition the thyroid glands do not make sufficient quantity of thyroid hormones, which leads to slowing of the metabolism process. It therefore leads to a person piling up a lot of weight. The symptoms of underactive thyroid include feeling tired and sleepy all the time.