Getting Started with Macro Tracking

If you have ever tried to improve your body composition—whether losing fat, building muscle, or simply eating better—chances are someone has mentioned macro tracking. But what does it actually mean, and where do you start? This guide breaks it all down so you can hit the ground running.

What Are Macronutrients?

Macronutrients—or macros for short—are the three main categories of nutrients that provide your body with energy: protein, carbohydrates, and fat. Each gram of protein and carbohydrate provides 4 calories, while each gram of fat provides 9. Tracking macros means monitoring how many grams of each you consume every day, not just the total calorie count.

Protein is essential for building and repairing muscle tissue, keeping you satiated, and supporting immune function. Carbohydrates are your body's preferred fuel source, powering workouts and brain activity. Fats are critical for hormone production, vitamin absorption, and long-lasting energy.

Why Track Macros Instead of Just Calories?

Two diets can have the exact same calorie total yet produce very different results. A diet of 2 000 calories split evenly between protein, carbs, and fat will feel—and look—very different from 2 000 calories of mostly processed carbs and sugar. Macro tracking lets you fine-tune the quality of your calories, not just the quantity.

For people focused on building muscle, hitting a daily protein target (typically 1.6–2.2 g per kg of body weight) is far more important than hitting a precise calorie number. For endurance athletes, adequate carbohydrate intake directly affects performance. Macro tracking gives you that level of control.

How to Calculate Your Macro Targets

Start by estimating your Total Daily Energy Expenditure (TDEE)—the number of calories your body burns in a day accounting for activity level. There are many free calculators online, and Leana can set this up for you automatically based on your weight, height, age, sex, and activity level.

Once you have your TDEE, adjust for your goal: eat at a small deficit (200–500 kcal below TDEE) to lose fat, at a small surplus (200–300 kcal above) to build muscle, or right at maintenance to improve body composition gradually. Then distribute your calories across macros. A common starting point is 30 % protein, 40 % carbs, 30 % fat—but adjust based on your sport, preferences, and how your body responds.

The Best Way to Start Logging

The hardest part of macro tracking is the early days of learning portion sizes and building the habit. Start by tracking just protein for the first week. Once that feels natural, add carbs and fat. Most people underestimate portions dramatically—especially cooking oils, nuts, and sauces—so accurate logging from day one is valuable.

Common Beginner Mistakes

• Not logging cooking oils and condiments (they add up fast).
• Eyeballing portions instead of weighing or measuring, at least initially.
• Trying to hit targets perfectly every day—aim for a weekly average instead.
• Logging after eating rather than planning ahead, which makes hitting targets harder.
• Giving up after one bad day. Consistency over weeks matters far more than any single meal.

How Leana Makes Macro Tracking Effortless

Manually weighing and searching every ingredient is the main reason people quit macro tracking. Leana removes that friction. Snap a photo of your plate and the AI estimates the macros in seconds. Scan a barcode for instant, accurate data from the manufacturer. Or search our database of millions of foods when you know exactly what you ate.

Leana's circular progress indicators show your daily protein, carb, and fat balance at a glance, so you always know where you stand and can plan your next meal accordingly. Start today—your future self will thank you.