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.
When they eat and consume fewer calories, they lose weight. Someone with an underactive thyroid will not burn energy anywhere near as fast as someone with a healthy thyroid. The result is that even if they eat less they gain weight. This is why those who suffer with hypothyroidism struggle with weight loss.f your thyroid is healthy and your liver is not you may still not lose weight. You need to heal both organs. There are many reasons why your liver may not be functioning well, but one of them is a malfunctioning thyroid. This is another reason why, for people with hypothyroidism, weight loss can be difficult.