MoMacros

"The Nutrient Counter" — "I balance your fuel"

Status: ❌ Future

MoMacros will track macronutrients and provide targets based on goals.

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Purpose

• Calculate daily macro needs
• Track macro intake vs targets
• Adjust macros based on goals
• Visualize macro distribution

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Macro Targets

Based on Goals

Goal	Protein	Carbs	Fat
Build Muscle	1g/lb	2g/lb	0.4g/lb
Lose Fat	1.2g/lb	1g/lb	0.3g/lb
Maintain	0.8g/lb	1.5g/lb	0.35g/lb
Performance	0.8g/lb	2.5g/lb	0.4g/lb

Calculation

interface MacroTargets {
  calories: number;
  protein: number;      // grams
  carbs: number;        // grams
  fat: number;          // grams
  fiber: number;        // grams

  // Percentages
  proteinPercent: number;
  carbPercent: number;
  fatPercent: number;
}

function calculateMacros(
  weight: number,
  goal: FitnessGoal,
  activityLevel: ActivityLevel
): MacroTargets {
  // TDEE calculation
  const bmr = calculateBMR(weight, height, age, sex);
  const tdee = bmr * activityMultiplier[activityLevel];

  // Adjust for goal
  const calories = goal === 'build_muscle' ? tdee + 300
                 : goal === 'lose_fat' ? tdee - 500
                 : tdee;

  // Set protein (most important)
  const protein = weight * proteinMultiplier[goal];

  // Remaining calories for carbs/fat
  const proteinCals = protein * 4;
  const remainingCals = calories - proteinCals;

  // Split remaining between carbs and fat
  const fat = weight * fatMultiplier[goal];
  const fatCals = fat * 9;
  const carbs = (remainingCals - fatCals) / 4;

  return { calories, protein, carbs, fat };
}

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Data Model

interface DailyMacros {
  date: Date;
  userId: string;

  // Targets
  targetCalories: number;
  targetProtein: number;
  targetCarbs: number;
  targetFat: number;

  // Actual (from meals)
  actualCalories: number;
  actualProtein: number;
  actualCarbs: number;
  actualFat: number;

  // Progress
  caloriePercent: number;
  proteinPercent: number;
  carbPercent: number;
  fatPercent: number;
}

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Planned API Endpoints

Endpoint	Method	Description
/api/macros/targets	GET	Get macro targets
/api/macros/targets	PUT	Set custom targets
/api/macros/daily	GET	Get daily summary
/api/macros/calculate	POST	Calculate recommended

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Visualization

• Daily progress bars
• Weekly average charts
• Macro distribution pie chart
• Calorie trend over time

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Implementation Tasks

• Build macro calculator
• Create targets storage
• Aggregate from meal logs
• Build macro dashboard
• Add goal-based recommendations