“The thing about dreams is that they're really only yours. No one else can see them, no one else can feel them.”
— Main character Natalie reflects on her personal aspirations.
Archivist's Choice
Fat Cat
Robin Brande (2009)
Genre
Young Adult / Romance
Reading Time
6-7 hours
Key Themes
See below
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A high school scientist experiments on herself to transform her body and outsmart her rival, only to find the human heart is the most unpredictable variable.
Synopsis
Catherine "Cat" Locke, a bright but overweight high school student, starts a science fair project to prove she can change her body through diet and exercise. Her goal is not just academic; it's also a way to get back at her rival, Matt McKinney, who once hurt her. As Cat tracks her progress, she faces physical and emotional difficulties, plateaus, and outside pressures. Her growing friendship with Jamie and a surprising connection with Matt complicate her experiment. The project makes Cat confront her real reasons and rethink what success, beauty, and self-worth mean, leading her to understand her own identity beyond the science fair results.
Reading time
6-7 hours
Difficulty
Easy
Pacing
Moderate
Mood
Uplifting, Romantic, Thought-provoking, Relatable
✓ Read this if...
You enjoy YA contemporary romance with a focus on self-improvement, body image, and a smart, driven protagonist.
✗ Skip this if...
You prefer fantasy or sci-fi, or are looking for a story without a central focus on weight loss and body image.
Plot Summary
The Science Fair Challenge
Catherine 'Cat' Locke, a bright and academic high school student, again competes in the Advanced Science class, a familiar fight against her intellectual rival and ex-crush, Matt McKinney. Driven by a wish for academic success, personal change, and a subtle desire for revenge against Matt for a past slight, Cat creates a bold science fair project: to carefully record and analyze her own weight loss journey. Her goal is not just to lose weight but to scientifically prove her chosen method works, aiming for a first-place finish that would secure her college admission and, perhaps, finally put her ahead of Matt.
The Diet Begins
Cat starts her experiment with her usual intensity. She adopts a strict diet, counting calories and avoiding processed foods, and begins a rigorous exercise routine, mostly running. She meticulously records every detail—her food intake, exercise time, weight changes, and even her emotional responses—in a dedicated notebook, which forms the main data for her project. Her initial progress is good, and she feels a sense of control and accomplishment, fueled by her scientific approach to personal change. This early success strengthens her belief in her method and her ability to reach her goals.
Matt's Observation and Curiosity
Matt McKinney, sharp and observant, quickly notices the significant changes in Cat's habits and appearance. He sees her new dedication to exercise and her altered eating patterns. While Cat tries to keep her project private, Matt's scientific curiosity grows. He begins to ask her subtle questions, trying to get information about what she's doing. This interaction, initially marked by their usual competitive talk, starts to hint at a deeper, unresolved dynamic between them, as Matt's focus shifts from rivalry to genuine interest in Cat's transformation.
The Friendship of Jamie and the Newfound Confidence
As Cat continues her project, her friendship with Jamie, a supportive and understanding friend, becomes stronger. Jamie is one of the few people Cat trusts with the true nature of her science project, offering encouragement and a listening ear. At the same time, Cat's consistent weight loss visibly changes her. She starts to feel more confident and comfortable, attracting positive attention from peers and even growing interest from Matt. This new confidence extends beyond her physical appearance, affecting her social interactions and overall manner, making her feel more capable.
Challenges and Plateaus
Despite her early success, Cat soon faces the realities of long-term weight loss. Her progress slows, and she hits a frustrating plateau, causing her motivation to drop. The strict diet becomes harder to maintain, leading to moments of temptation and self-doubt. The physical effort of her exercise routine also takes its toll, making her feel tired and sometimes discouraged. These challenges force Cat to confront the mental and emotional aspects of her experiment, testing her resolve and the scientific strictness of her self-imposed study.
A Developing Connection with Matt
As the science fair deadline nears, Matt and Cat spend more time together, initially through class assignments and shared study sessions. Their competitive dynamic slowly softens, giving way to a more genuine connection. Matt shows a surprising level of care and understanding, offering support and encouragement instead of just challenges. Their conversations go deeper than academics, touching on personal hopes and vulnerabilities. This evolving relationship complicates Cat's original motivation for revenge, as she finds herself increasingly drawn to Matt, rekindling old feelings she thought were long gone.
The Revelation of the Project
Feeling a growing trust and connection with Matt, Cat finally decides to tell him the full details of her science project. She explains her careful data collection, her diet and exercise plans, and her ambitious goal of winning the science fair while transforming herself. Matt, always the scientist, is impressed by her dedication and the rigor of her method but also expresses concern for her well-being, especially about the intensity of her approach. This open conversation marks a turning point, strengthening their bond and allowing for a deeper understanding of Cat's motivations and vulnerabilities.
Overcoming Obstacles and External Pressure
Cat continues to face internal and external pressures. While her physical transformation is clear, she deals with lingering societal expectations of body image and the judgment of others. She also battles her own insecurities, realizing that while her body is changing, her self-perception is a more complex journey. The stress of the science fair, combined with the emotional complexities of her rekindled feelings for Matt, adds to her burden. She learns to handle these challenges, finding strength in her determination and the support of her friends and Matt.
The Science Fair Presentation
The science fair day arrives, and Cat presents her project, 'The Effects of Caloric Restriction and Increased Physical Activity on Human Body Mass,' with both nervousness and pride. Her display is complete, showing her detailed data, graphs, and conclusions. She explains her findings clearly, demonstrating her scientific skill and the personal commitment behind her research. Her project gets significant attention; some admire her bravery and scientific rigor, others perhaps judge her focus on weight. Matt is there, offering quiet support and admiration, strengthening their bond.
The Results and Realizations
The science fair results are announced, and while Cat's project is highly praised for its scientific merit and personal dedication, her true victory goes beyond a prize. She realizes that the experiment was less about revenge or even just weight loss, and more about self-discovery, discipline, and understanding her own body and mind. She has gained confidence, self-awareness, and a deeper appreciation for healthy living. Her relationship with Matt has become something meaningful and supportive, proving that true connection is more valuable than any rivalry.
A New Beginning
After the science fair, Cat continues to maintain a healthy and balanced lifestyle, but with a new perspective that prioritizes well-being over extreme measures. She has learned the importance of self-acceptance and the complexities of body image. Her relationship with Matt grows, built on mutual respect, intellectual compatibility, and genuine affection. They look forward to college and their future together, no longer rivals but partners. Cat's journey ends not with a perfect body or a definitive win over Matt, but with a deep understanding of herself and what truly matters.
Principal Figures
Catherine 'Cat' Locke
The Protagonist
Cat transforms from an insecure, revenge-driven competitor into a confident young woman who understands the true meaning of health, self-acceptance, and genuine connection.
Matt McKinney
The Love Interest / Academic Rival
Matt moves from being Cat's competitive rival to her understanding and supportive romantic partner, helping her to see beyond her initial motivations for revenge.
Jamie
The Supporting
Jamie remains a constant source of support for Cat, witnessing her transformation and helping her maintain perspective.
Mr. Harrison
The Supporting
Mr. Harrison primarily serves as a consistent authority figure and academic facilitator, observing his students' growth.
Cat's Mom
The Supporting
Cat's Mom provides a stable home base and parental support throughout Cat's journey.
Cat's Dad
The Supporting
Cat's Dad provides a stable home base and parental support throughout Cat's journey.
Themes & Insights
Self-Acceptance and Body Image
The novel explores Cat's journey from insecurity about her weight to a deeper understanding of self-acceptance. Initially, her weight loss is driven by a desire for outside approval and revenge against Matt. However, as the experiment continues, she realizes that real confidence comes from within, not just from a number on a scale. The struggle to maintain her diet and the plateau she experiences show the mental and emotional cost of body image pressures, leading her to value health and well-being over an ideal physical form. This theme is clear in Cat's thoughts and her eventual realization that her worth is not defined by her size.
“Maybe the real experiment wasn't about losing weight at all. Maybe it was about finding out what I was made of.”
The Nature of Competition vs. Collaboration
The relationship between Cat and Matt initially centers on intense academic rivalry. Both are smart and driven, constantly trying to outperform each other. However, as Cat's personal experiment unfolds, their relationship slowly changes from pure competition to one of collaboration and mutual support. Matt's genuine interest in Cat's project and his empathy for her well-being transform their dynamic. This theme suggests that while competition can motivate, real growth and deeper connections often come from collaboration and understanding, as seen in how Matt helps Cat reflect on her motivations rather than just challenging her.
“It was one thing to win against Matt. It was another thing entirely to win *with* him.”
The Scientific Method Applied to Life
Cat's entire journey is presented as a scientific experiment, applying the scientific method to her own life. She forms a hypothesis, collects data, analyzes results, and draws conclusions. This theme highlights the power of structured thinking and evidence, not just in a lab, but in understanding personal challenges. However, the novel also subtly questions the limits of a purely scientific approach when it comes to complex human emotions and well-being. Cat learns that while data can inform, it doesn't always capture the full picture of human experience, especially when dealing with self-worth and relationships.
“My hypothesis was simple: if I controlled every variable, I could control my body. The variable I hadn't accounted for was me.”
Revenge vs. Forgiveness and Growth
A significant initial reason for Cat's project is a desire for revenge against Matt McKinney for a past hurt. She believes that by transforming herself and winning the science fair, she will somehow 'get back' at him. However, as her relationship with Matt develops and she grows personally, this desire for revenge gradually fades. She comes to understand Matt's true character and her own feelings, realizing that holding onto past grievances is less fulfilling than building new, positive connections. The theme shows that personal growth often involves letting go of resentment and embracing forgiveness, both for others and for oneself.
“I thought I wanted to win. But maybe, what I really wanted was to stop fighting.”
Plot Devices & Literary Techniques
The Science Fair Project
The central framework that drives Cat's personal transformation and the novel's plot.
The science fair project serves as the primary plot device, providing the initial motivation and structure for Cat's journey. By framing her weight loss as a rigorous scientific experiment, it allows for meticulous data collection, analysis, and a clear goal. This device not only propels the narrative forward but also provides a unique lens through which Cat examines her body, habits, and emotions. It justifies her intense focus and allows for the integration of scientific principles into a personal story, making her transformation measurable and observable, both to herself and to the reader.
First-Person Narration
Allows direct access to Cat's internal thoughts, insecurities, and scientific observations.
The novel is told from Catherine Locke's first-person perspective, providing intimate access to her thoughts, feelings, and meticulous observations. This device is crucial for understanding her motivations, insecurities, and the complex emotional landscape of her weight loss journey and rekindled feelings for Matt. It allows the reader to experience her scientific rigor, her moments of doubt, her triumphs, and her eventual realizations directly, fostering empathy and a deep connection to her character. Her internal monologue is often analytical, reflecting her scientific mind, even when grappling with deeply personal issues.
The Rivalry with Matt McKinney
A catalyst for Cat's ambition and the eventual development of a romantic relationship.
The long-standing academic rivalry between Cat and Matt McKinney acts as a significant plot device. Initially, it fuels Cat's desire for revenge and motivates her to excel, pushing her to devise her ambitious science project. This competition provides external conflict and a clear antagonist (in Cat's mind). However, as the story progresses, the rivalry evolves into a catalyst for their romantic relationship. It forces them to interact, eventually breaking down barriers and revealing deeper connections, transforming what started as a competitive dynamic into a supportive and loving partnership.
Critical analysis
Notable Quotes
“Sometimes you have to break a few rules to find out what you're really capable of.”
— Natalie contemplates defying her parents' expectations.
“Being smart doesn't mean you have to be boring. It just means you have more interesting ways to get into trouble.”
— A friend teases Natalie about her academic achievements.
“Love isn't about finding someone perfect. It's about finding someone who's perfectly imperfect for you.”
— Natalie's internal monologue about her feelings for a boy.
“You can't live your life trying to please everyone else. Eventually, you'll lose yourself.”
— A wise older character offers advice to Natalie.
“The biggest risks often lead to the biggest rewards.”
— Natalie considers taking a chance on a new experience.
“Sometimes, the quietest people have the loudest thoughts.”
— Natalie observes a shy character.
“It's not about the destination, it's about the journey and who you share it with.”
— Reflecting on a school trip and the bonds formed.
“Fear is just a feeling. It doesn't have to be a fact.”
— Natalie tries to overcome her anxieties.
“The best kind of freedom is the freedom to be yourself, unapologetically.”
— Natalie embraces her true identity.
“Even the most ordinary moments can become extraordinary when you're with the right person.”
— Natalie experiences a simple, yet meaningful, moment with her love interest.
“Mistakes are just lessons in disguise. You only truly fail if you don't learn from them.”
— Natalie reflects on a past error.
“Sometimes, the person you're meant to be with is the one who makes you feel most like yourself.”
— Natalie's realization about her romantic relationship.
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Key Questions (FAQ)
Catherine Locke's main goal is to win first prize at the science fair, secure admission to her dream college, improve her body and lifestyle through a radical experiment, and ultimately get revenge on her rival, Matt McKinney. She plans to achieve this by using herself as the subject of a scientific study on weight loss and fitness.
