Woman Smiling and Holding a Supplement I managed to find several research studies on Garcinia Cambogia, in both animals and humans. According to some studies in rats, it can inhibit a fat producing enzyme called Citrate Lyase, making it more difficult for the body to produce fat out of carbohydrates (1). Other rat studies show increased levels of the neurotransmitter serotonin. This could theoretically lead to reduced appetite and cravings (2). There are actually a whole bunch of studies in rats showing that Garcinia Cambogia consistently leads to significant weight loss (3, 4, 5, 6).
The foil is a character central to the plot that has agency and acts in ways to highlight the features of the character to whom they're meant to draw attention to. The main example provided is like saying "Satan is the foil to God", when neither of these characters feature prominently in each others stories in any testament.
Definition, Usage and a list of Foil Examples in common speech and literature. In literature, a foil is a character that shows qualities that are in contrast with the qualities of another character with the objective to highlight the traits of the other character.
In fiction, a foil is a character who contrasts with another character - usually the protagonist— to highlight particular qualities of the other character.    In some cases, a subplot can be used as a foil to the main plot. The term “foil” came into its current usage as a literary device from the concept of putting tin foil behind a gemstone to make it look more brilliant. The foil character works in the same way—to make the protagonist seem more incredible, or, adversely, to make his or her faults more obvious.
A foil is a literary character that is intended to highlight attributes in another character through opposing traits. An author creates a foil to emphasize traits in another character. Foils aren’t necessarily opposites; however, they highlight opposing traits. Foil Definition a foil is a character whos personality, attitude, or physical characteristics is opposite of another character How to Find it To find the foil in literary text, you must look for opposites and contrasting traits between characters.