Macro Calculator | Protein, Carb & Fat Gram Split for 45+ | Body Thrive
v1.5 EVIDENCE-BASED MACRONUTRIENT SPLITS

MACRO CALCULATOR

Divide your daily calorie target into optimal protein, carbohydrate, and fat gram amounts. Tailored for muscle retention and metabolic health in adults 45+.

Daily Macronutrient Targets Precision Calorie Allocation
Protein (4 kcal/g)
150 g

600 kcal (30%)

Carbohydrates (4 kcal/g)
200 g

800 kcal (40%)

Dietary Fat (9 kcal/g)
67 g

600 kcal (30%)

At 2,000 calories, a 30/40/30 split provides 150g of protein, 200g of carbohydrates, and 67g of dietary fat. Spreading your 150g protein across 3 to 4 meals optimizes muscle retention.
Personalised Plan

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CLINICAL EVIDENCE & GUIDANCE

Frequently Asked Questions

What are the standard caloric values for each macronutrient?

Protein provides 4 calories per gram; carbohydrates provide 4 calories per gram; dietary fat provides 9 calories per gram.

Why do adults 45+ require higher protein ratios?

Age-related anabolic resistance means muscle tissue requires higher per-meal concentrations of essential amino acids (specifically leucine) to trigger protein synthesis.

What macro split is best for fat loss over 45?

A high-protein balanced split (e.g. 35% protein, 35% slow carbs, 30% healthy fats) spares lean muscle tissue, blunts hunger, and supports stable daytime blood sugar.

METABOLIC FAT LOSS & NUTRITION

Turn Your Metabolic Numbers Into Real Fat Loss

Calorie targets and macronutrient splits work when paired with structured resistance training and metabolic accountability. Explore our VIP coaching tracks: