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.
Photo Credit Goodshoot/Goodshoot/Getty Images. The Hartford Clinic suggests a high-fiber diet for those who struggle with underactive thyroid. Such a diet improves regularity and can help you to maintain a healthy weight. To increase fiber in your diet, eat fruits and vegetables with most meals and as snacks.hoto Credit Thomas Northcut/Digital Vision/Getty Images. Foods that contain good amounts of iron can improve thyroid function. Iron is found in various foods, such as lean red meat, tuna, salmon, clams, most beans, leafy greens, tofu and fortified grain products, such as breads and cereals.