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It doesn't have to be a sibling. It can be anyone. Whether we admit it or not, we all find a way to compare ourselves to someone out there. Please read this, and I will explain this clearly
So you’ve been eating clean, tracking your meals, dragging yourself to the gym — and somehow, your sister loses 3kg just by switching from Coke to Diet Coke.
Unfair? Absolutely.
Mystical? Nope.
It happens to me too.
Let’s break down why this happens, using actual science, not conspiracy theories whispered over chai.
It’s Not Just You — It’s Your DNA
Genetics play a big role in how easily someone gains or loses weight. Some people naturally burn more calories at rest, digest carbs better, or regulate hunger hormones more efficiently. If your sister’s body is running on Formula 1 mode while yours is stuck in traffic, it’s not because she’s working harder — it’s because she’s wired differently. Unfortunately, you can not do much about this. You have to play the cards you have been dealt.
Muscle Mass Is the Hidden Weapon
Muscle isn’t just for showing off in gym selfies. It’s a metabolic powerhouse. The more muscle you have, the more calories your body burns even when you’re doing nothing. If your sister has more muscle (even if it doesn’t “look” like she lifts), she’s burning through fat faster than you — without even trying.
Meanwhile, if you’ve been losing muscle thanks to crash diets, skipping resistance training, or just not eating enough protein, your metabolism may have slowed down — making fat loss feel painfully slow.
Metabolism Isn’t Equal for Everyone
Metabolism isn’t one-size-fits-all. It’s influenced by age, hormones, muscle mass, stress, sleep, and yes — even your period. You might be doing everything “right,” but if your metabolism is sluggish due to years of dieting, stress, or lack of sleep, your body’s fat-burning engine isn’t firing at full power.
And no, metabolism doesn’t “stop” after 30 — but it can slow down if you stop moving, stop building muscle, and start eating like you’re 16 forever.
Your Body Isn’t Broken — It’s Unique
Just because you’re not losing weight at the same speed doesn’t mean your body is failing you. It means your starting point is different. Maybe your sister had less fat to lose. Maybe you’ve been dieting for years, and your body’s trying to protect itself. Maybe she sleeps like a baby while you’ve got 3 kids and a full-time job.
Stop comparing your chapter 1 to someone else’s chapter 10.
So What Can You Do?
– Focus on building muscle — lift heavy, eat enough protein, and don’t fear weights
– Eat in a sustainable calorie deficit — not a starvation plan that wrecks your energy
– Prioritise sleep, stress management, and recovery — these things matter more than you think
– Be consistent — fat loss isn’t fast or fair, but it is possible with the right plan
Final Thought
Your sister’s faster weight loss doesn’t make her better — and it definitely doesn’t make you broken. You’re just built differently. Literally.
This is your sign to stop comparing, start lifting, and play the long game. Because when you focus on your journey — not hers — that’s when the real magic happens.
