coenzyme
it serves as coenzyme for many enzymes in the form of NAD,NADP,NADPH..............
Vitamin A: The yellow and green pigments found in vegetables are called carotenes which are pro vitamins and are converted into Vitamin A. The role of vitamin A in Vision has already been discussed in a previous page. Vitamin B2 is better known as riboflavin and is widely distributed in many foods. Riboflavin is used to form a coenzyme FAD important in the utilization of oxygen in the cells. Niacin, also known as nicotinic acid, is also in the B complex of vitamins. Nicotinic acid was first obtained from the alkaloid nicotine in tobacco and was later found in many plant and animal tissues as niacin. Nicotinamide is a part of the important coenzyme, Nicotinamide Adenine Dinucleotide (NAD). This NAD+ coenzyme is important during biological oxidations and is discussed in detail in a later page. Pantothenic Acid is art of the structure of coenzyme A.
I believe Niacin Equivalent refers to the amount of tryptophan in a food that will be converted into niacin (provided the body is healthy enoguh to make the conversion effectively).
Acetyl-CoA: CoA=Co-enzyme A; Coenzyme I, coenzyme II, coenzyme A and B-12 and coenzyme Q.
Pantothenic acid is converted into its active form Coenzyme A.
A coenzyme helps an enzyme do its' work. Without the coenzyme, the enzyme will remain inactive.
Vitamin K is also a coenzyme.
No, niacin is a natural vitamin found in many foods you eat.
The metabolism process
I'm not aware of any weight loss properties of Coenzyme Q10, or any other coenzyme.
It is an important coenzyme for nutrition. CoA = coenzyme-A