The story behind CaloBurner

12kg lost. 28% to 15% body fat. 2.5 months.

I lost 12kg of fat in 2.5 months, from 28% body fat down to 15%, while traveling through Southeast Asia. No gym membership. No fad diet. Just a consistent calorie deficit, tracked every single day. CaloBurner is the app I built from that experience.

The starting point

I started at 82.9kg with a BMI of 29.3 and a sedentary lifestyle, about 4,000 steps a day. I wasn't a fitness person. I didn't have a gym routine. I was a developer who spent most of his day sitting. The decision to change came from stepping on a scale and not liking the number.

What actually worked

I traveled to Da Nang and then Chiang Mai, eating street food and restaurant meals every day. The approach was simple: calculate my TDEE, set a calorie deficit, and track everything. No crash diets. No 1,200-calorie starvation. Just science-backed targets based on my metabolism.

Walking became my primary activity. A 45-minute fasted morning walk, a 30-minute sunset walk, and a 15-30 minute walk to dinner. I went from 4,000 steps a day to 15,000. It was easier than the gym, required no equipment, and worked everywhere I traveled.

The hardest part was hitting my protein target: 160g per day. I checked my protein tracker 3-4 times a day to stay on target. That daily habit of checking and adjusting is what kept me consistent. Whey protein and creatine filled the gap when whole foods weren't enough.

The numbers

I started at 82.9kg with a BMI of 29.3, averaging roughly 4,000 steps per day. My TDEE (total daily energy expenditure), calculated using the Mifflin-St Jeor equation^[1], told me exactly how many calories I needed to maintain my weight. From there, I set a moderate daily deficit of around 500-700 calories, which kept me in a sustainable range rather than a crash-diet zone.

Over the first few weeks, my step count climbed from 4,000 to around 10,000 as I added fasted morning walks. By the second month, I was consistently hitting 15,000 steps per day. That progression happened naturally. I walked more because I enjoyed exploring new cities on foot, not because I forced myself onto a treadmill.

The weight came off at a rate of roughly 1-1.5kg per week. Some weeks were faster, some slower, but the trend line always pointed down. By the end of 2.5 months, the scale read 70.9kg. My body fat percentage had dropped from 28% to 15%. The total fat lost was approximately 12kg, while lean mass stayed mostly the same thanks to adequate protein intake and creatine supplementation.

From prototype to app

I built the first version as a web-based calorie deficit tracker and used it daily throughout my transformation. It worked for me, but it wouldn't scale to regular users. Most people won't use separate web tools and AI chats when they could use one dedicated app.

So I built CaloBurner. Every feature exists because I needed it during my own fat loss: the AI food scanner for unfamiliar meals abroad, the step counter because walking was easier than the gym, the macro tracker because hitting my protein goal was the hardest part.

The philosophy

CaloBurner is built on a simple belief: weight loss should be boring. Not extreme, not dramatic, not painful. Just a small, consistent calorie deficit maintained over time. That is what actually produces lasting results.

There are no 1,200-calorie meal plans here. No "detox" phases. No elimination of entire food groups. CaloBurner calculates your personal TDEE using the Mifflin-St Jeor formula^[1], one of the most validated equations in nutrition science, and sets a moderate deficit from that baseline. The targets are designed to keep you losing fat while still eating enough to function, sleep well, and not feel miserable.

This app is designed for normal people. Not gym enthusiasts who already know their macros by heart. Not bodybuilders prepping for a competition. CaloBurner is for the person who just stepped on a scale, did not like the number, and wants the simplest possible path forward. You log your food, hit your targets, walk more, and let the deficit do its work. That is the entire system.

What CaloBurner is (and isn't)

CaloBurner is a complete calorie deficit toolkit. It calculates your TDEE, sets personalized macro targets, tracks your food from photos, counts your steps, and gives you daily AI coaching. It is not another generic food diary or calorie counting spreadsheet.

It is designed for normal people who want to lose weight, not gym enthusiasts, not bodybuilders. If you just decided to lose weight and want the simplest way to start, that's who CaloBurner is for.