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May 2, 2026·9 min read

I Was Obese, Had High Blood Pressure, and Tried Every Diet App. None of Them Worked — So I Built My Own.

CI

Cedric Isubol

Founder of Caldef

Let me be honest with you.

Two years ago, I was overweight, my blood pressure was dangerously high, and my doctor looked me in the eye and said words that I will never forget:

"If you don't change your lifestyle, you will be on medication for the rest of your life."

I was 27 years old.

That was the moment everything changed.

The Problem With Every Diet App I Tried

I did what most people do. I downloaded every popular calorie tracking app I could find.

MyFitnessPal. Lose It. Cronometer. You name it, I tried it.

And every single one had the same problem.

They made tracking feel like a second job.

Search for "chicken adobo" — nothing. Try "sinangag" — not found. Scan a barcode from a local market — unrecognized.

I would spend 10 minutes after every meal just trying to log what I ate. And after three days of that? I gave up. Every time.

The apps weren't built for how I actually eat. They weren't built for me.

The Idea That Changed Everything

One night, frustrated after another failed attempt at logging my dinner, I had a thought.

What if I could just describe what I ate — like I'm texting a friend — and the app figures out the rest?

"Two cups of rice, grilled tilapia, and a small bowl of sinigang."

That's it. That's the whole input.

No searching. No scanning. No database. Just plain text.

I opened my laptop that same night and started building.

What I Built in 6 Months

I called it Caldef — short for Calorie Deficit.

The idea was simple. Use AI to understand natural language descriptions of food and instantly calculate the full nutritional breakdown — calories, protein, carbs, fat, fiber, and sugar.

But as I kept building, I realized calorie logging was only part of the problem. People also needed to know:

  • How many calories should I actually eat for MY body?
  • Am I losing weight at the right pace?
  • What should I eat today that fits my goal?
  • What is my body actually doing with the food I eat?
  • How do I plan my meals for the entire week?

So I added more.

A calorie deficit planner that calculates your personal TDEE using the Mifflin-St Jeor formula — the same one doctors use — based on your height, weight, age, and activity level.

A weight tracker with a beautiful chart that shows your actual weight loss curve versus your expected curve. So you always know if you're on track.

Food recommendations powered by AI that suggest meals from YOUR country. Not American meal plans. Not European portion sizes. Actual food you recognize and can cook.

A daily AI diet analysis that goes beyond just counting calories. Every day, Caldef reads your food logs, analyzes your nutritional patterns, and gives you personalized health insights and actionable recommendations. Are you getting enough protein? Is your fiber intake too low? Are your meals balanced for your deficit goal? Caldef tells you — automatically, every single day.

A custom meal plan builder where you create your own weekly meal plan inside the app. No more wondering what to eat tomorrow. Plan your entire week in advance, stay within your calorie goal, and walk into every meal with a clear plan. You can build it yourself or let the AI generate one based on your TDEE and food preferences.

And a weekly meal plan generator so you never have to ask "what should I eat this week?" ever again.

The Results That Made Me Keep Going

Six months after I started using the early version of Caldef on myself:

  • I lost 18 kilograms
  • My blood pressure returned to normal
  • My doctor took me off the medication watch list
  • I felt better than I had in years

I'm not saying this to brag.

I'm saying this because I want you to know that Caldef was tested on the person who needed it most — me.

Why Most People Fail at Calorie Tracking (And How to Fix It)

After talking to hundreds of users, I've learned that most people fail for the same four reasons:

1. It takes too long.

If logging a meal takes more than 30 seconds, people stop doing it. Caldef takes 10 seconds. You describe your meal, the AI calculates it, done.

2. They don't know their actual calorie target.

Most people guess. "I'll eat 1,500 calories" — but is that right for your body? Caldef calculates your exact personal target based on your biometrics.

3. They have no visual feedback.

Without seeing your progress on a chart, it's hard to stay motivated. Caldef shows you exactly where you are versus where you should be — every single day.

4. They don't know what to eat.

Even when people know their calorie target, they still ask "but what should I actually eat?" Caldef solves this with AI-generated meal plans and daily diet analysis that tells you exactly what your body needs — based on what you actually logged.

The Moment I Knew This Was Real

A few weeks after launching Caldef on Google Play, I got a message from a user.

She said she had been trying to lose weight for two years. She had tried everything. Nothing stuck.

After one week of using Caldef, she said it was the first time calorie tracking actually felt manageable.

That message meant more to me than any download number.

Everything Caldef Does For You

Here's the complete picture of what you get:

🤖

AI Food Logging

Describe your meal in plain text. Get instant calorie and macro breakdown. Takes 10 seconds.

🧠

Daily AI Diet Analysis

Every day, Caldef analyzes your food logs and gives you personalized health insights and recommendations — automatically.

📋

Custom Meal Plan Builder

Create your own weekly meal plan or let AI generate one based on your calorie goal and food preferences. Never wonder what to eat again.

⚖️

Weight Tracker

Log your weight daily. See your actual progress versus your expected loss curve on a beautiful chart.

🎯

Calorie Deficit Planner

Get your exact personal daily calorie target based on your body stats and weight loss goal.

🌍

Country-Based Food Recommendations

AI suggests meals from your country that fit your calorie goal perfectly.

📊

Weekly Calorie Overview

See your entire week's calories at a glance. Spot patterns, adjust your plan, stay on track.

🔔

Smart Daily Reminders

Gentle notifications remind you to log your weight and meals so you never fall behind.

Try It Free for 7 Days

Caldef is now live on Google Play with a 7-day free trial.

No charge until day 8. Cancel anytime before then and you pay nothing.

Just describe your meals. Let the AI do the math. Watch the weight come off.

Download Caldef Free on Google Play

Get it on
Google Play

Caldef uses AI to estimate nutrition values. Individual results may vary. Always consult a healthcare professional before making significant changes to your diet.