A vitamin that functions both as a hormone and a visual pigment?

Retinal / Retinol

• Retinol, also known as Vitamin A, is a crucial micronutrient that performs several essential functions in the human body, acting both as a hormone and as a component of the visual pigments necessary for vision
• Retinol functions as a hormone by regulating gene expression during the growth and development process. It influences the transcription of genes involved in cell differentiation and growth.
• Vitamin A plays a crucial role in both male and female reproductive processes.
• Retinos as a visual pigment as it is a key component of rhodopsin, a pigment found in the retina of the eye.
• Rhodopsin is essential for vision in low-light conditions.

Folic Acid

• One of the B vitamins is folate, which is also known as folacin and vitamin B9.
• It is used to treat a type of anemia in which the body doesn't have enough folic acid, which causes too few red blood cells.

Thiamine

• Thiamine, which is also known as thiamin and vitamin B1, is a vitamin and a necessary micronutrient that the body cannot make.
• It is a dietary supplement or medication that is commercially synthesized and found in food.
• Some metabolic reactions, like the breakdown of glucose and amino acids, require phosphatrylated forms of thiamine.

Riboflavin

• Vitamin B2, also known as riboflavin, can be found in food and is marketed as a dietary supplement.
• Along with normal growth and development, these coenzymes are involved in energy metabolism, cellular respiration, and antibody production.
• Riboflavin may lessen adult migraine headaches when taken orally and prescribed to treat corneal thinning.