Final answer:
Carrie's experience with weight loss after taking raspberry ketones is an anecdote, which is a personal and unscientific account of her experience.
Step-by-step explanation:
The experience described by your friend Carrie, where she took a daily supplement of raspberry ketones and observed weight loss, is best described as an anecdote. An anecdote is a personal account of an experience or event, typically used to illustrate a point but not scientifically rigorous enough to establish cause and effect. It is not a blind experiment, where subjects do not know if they are receiving the treatment or control. It's also not representative of a case-control study, which is an observational study that compares a group with a trait to a group without it, nor is it an example of nutritional genomics, which is the study of how diet affects genes and how genetic variations affect the body’s reaction to nutrients.