The Perfect Macro Ratio – You’ve been lied to

Most Recent Update: Jan 28, 2025
Read Time

Intention

Is there really a perfect macro ratio? The truth might surprise you. Discover the myths surrounding the 'ideal' balance of macros and discover how to create a plan that truly fits your goals and lifestyle

Macro Ratios Are Outdated—and What You Need Instead

The Perfect Macro Ratio

When it comes to nutrition, there’s one myth that refuses to die: the perfect Macro Ratio.

You’ve probably heard it before: eat 40% carbs, 40% protein, 20% fat, or some other formula that’s marketed as the perfect Macro Ratio for your goals.

Here’s the problem. These ratios are bogus.

Macro ratios are like trying to fit every client into the same cookie-cutter mold. They completely ignore the one thing that truly matters: YOU.

Your body, your goals, and your lifestyle aren’t the same as anyone else’s, so why should your nutrition plan be based on a so-called perfect Macro Ratio?

Let’s break it down.

Why Macro Ratios Don’t Work

Most coaches who push macro ratios as the foundation of their plans are either uninformed or lazy. Let me explain.

1. Ratios Prioritize Numbers Over People

Instead of asking, “What do YOU actually need?” they use a generic formula like 40/30/30. But your needs aren’t based on percentages. They’re based on your:

  • Age, weight, height, and gender
  • Activity level and metabolic health
  • Unique hormonal profile and personal goals


2. Ratios Don’t Solve Real Problems

Let’s say you’re struggling to hit your protein target, your energy levels are tanking, or you’re dealing with hormonal imbalances.

The perfect Macro Ratio won’t tell you how to adjust your macros to fix these issues. It will just keep you stuck in an arbitrary percentage game.

3. Lazy Coaching = Lazy Results

If your coach sets your macros based on ratios, they’re basically saying, “I don’t care enough to tailor this to you.” Sorry, but that’s unacceptable. Nutrition isn’t a one-size-fits-all process, and neither should your macros be. Only a perfect Macro Ratio that fits your unique needs will give you the results you want.

If you’ve been stuck with cookie-cutter ratios that don’t deliver, check out our Macro Calculator to get precise, personalized numbers based on your stats and goals. It’s simple, fast, and completely free.

Focus on the Essentials First

When it comes to setting macros, you need to get the essentials right first.

Your body can’t function properly without two key things:

  • Essential amino acids (from protein)
  • Essential fatty acids (from fat)


Here’s the kicker. There’s no such thing as essential carbohydrates. Some people simply need fewer carbs than others.

But without enough protein or fat, your body will die. Let that sink in for a second.

This is where macro ratios completely miss the mark. Ratios treat carbs, protein, and fat as interchangeable building blocks, but they’re not. Here’s why.

Essential Amino Acids (Protein)

Protein is the foundation of your diet, no matter what your goals are. Without enough protein, you can’t build or maintain lean muscle, recover from workouts, or even feel full after meals. Finding the perfect Macro Ratio for protein intake is key to maximizing your results.

Protein needs to be set based on your lean body mass, not total body weight. Use 0.85–1.35g per pound of lean mass to help you achieve the perfect Macro Ratio for your diet.

  • Lower end for less exercise
  • Higher end for more exercise


Essential Fatty Acids (Fat)

Fat isn’t just a calorie source. It’s essential for:

  • Hormonal health (testosterone, estrogen, progesterone)
  • Brain function (your brain is 60% fat)
  • Sustained energy and satiety (especially during low-calorie diets)

Fixed macro ratios often push fat too low, especially during cuts, leaving people vulnerable to hormonal crashes, energy dips, and poor recovery.

Who’s Most at Risk?

Certain populations need extra attention when it comes to protein and fat intake. Here’s why setting these macros correctly is crucial for achieving the perfect Macro Ratio.

1. Menopausal Women

As hormone production declines, adequate fat intake becomes even more important to support hormone regulation and reduce symptoms like fatigue, mood swings, and weight gain. Achieving the perfect Macro Ratio with the right balance of fat and protein can be a game-changer.

2. Women with PCOS

PCOS sufferers already struggle with hormonal imbalances and insulin resistance. Setting protein and fat correctly helps stabilize hormones and energy levels, making symptoms easier to manage.

3. Nursing Moms

Breastfeeding burns a ton of calories and pulls heavily from fat stores. Without enough dietary fat, moms can feel constantly drained, face hormonal crashes, and even experience reduced milk supply. Finding the perfect Macro Ratio is vital for nursing moms to ensure optimal health and energy.

4. Diabetics

Carbohydrate intake plays a significant role in blood sugar regulation for diabetics. By prioritizing protein and fat first, you can better stabilize blood sugar levels while minimizing spikes and crashes.

5. Endurance Athletes

While carbs are crucial for endurance athletes, fat plays a significant role as a secondary energy source during long-distance events. Low fat intake can leave athletes under-fueled and struggling to recover. A balanced perfect Macro Ratio helps ensure sustained energy and recovery.

6. People with Low Body Fat

When you’re lean, low-fat diets can trigger hormonal imbalances like reduced testosterone in men or irregular cycles in women. Fat is essential for long-term recovery, brain health, and energy. Achieving the perfect Macro Ratio can help support healthy hormone levels and optimal performance.

Why Ratios Neglect These Needs

Fixed macro ratios fail to prioritize the essentials. Instead of ensuring you’re getting the right amount of protein and fat for your individual needs, they lump all macros into arbitrary percentages. Without considering the perfect Macro Ratio, these generic plans can leave gaps in your nutrition.

For example:

  • A 40/30/30 plan might give you 60g of protein when you need 120g
  • Or it might cut your fat intake too low, leaving you with hormonal crashes and fatigue


Ratios treat carbs, protein, and fat as equal priorities, but they’re not. Protein and fat come first. Then carbs can be adjusted based on your energy demands and activity level, helping you find the perfect Macro Ratio that works for you.

The Better Way to Set Macros

Instead of relying on cookie-cutter ratios, here’s what works.

1. Start With Protein

Calculate your protein needs based on lean body mass, activity level, and goals. For most people, this is around 0.8–1.2g per pound of lean mass.

  • Lower end for less exercise
  • Higher end for more exercise


2. Set Your Fat Intake

Fat needs to support hormonal health, brain function, and satiety. Start with 0.3–0.5g per pound of lean body mass, then adjust based on your tolerance and goals.

3. Adjust Carbs Based on Energy Needs

Once protein and fat are set, carbs can be used as an energy dial.

  • For fat loss, carbs may be lower to stay in a calorie deficit
  • For performance, carbs should be higher to fuel your workouts and recovery
  • For general health, carbs can be flexible based on your personal preference


If you want a customized macro breakdown tailored to your body, energy, and goals, check out our Custom Macro Blueprint. This program gives you a personalized plan built entirely around your stats, preferences, and lifestyle.

Why Consistency Beats Accuracy

Here’s the truth. You don’t need to hit your macros perfectly every single day to see results. Finding the perfect Macro Ratio is important, but don’t get hung up on achieving it with absolute precision.

One of the biggest mistakes I see clients make is obsessing over getting every gram perfect. But here’s the thing. Your body doesn’t care about one “off” day.

What matters is consistency over time.

If you’re hitting your protein and fat targets and staying close to your calorie goals most of the time, you’re doing great. Stop stressing about perfection. It’s consistency that drives progress, not striving for the perfect Macro Ratio every single day.

Why You Deserve Better Than Ratios

If your coach handed you a 40/30/30 plan and called it a day, ask yourself this:

  • Did they calculate your protein needs based on your body?
  • Did they prioritize essential fat intake to support your health?
  • Do they understand how your carbs need to shift as your goals change?


If the answer is no, 🚩 red flag alert.

Final Thoughts: Build a Plan That Works for YOU

Stop chasing cookie-cutter ratios. Your body isn’t a math formula. It’s dynamic, adaptive, and unique.

You deserve a plan that prioritizes:

  • Protein to build muscle and recover
  • Fat to support your hormones and overall health
  • Carbs to fuel your lifestyle and energy levels


When you get the essentials right first, the results take care of themselves.

Reply with “FIX MY MACROS,” and I’ll get you set up with proper numbers.

Carbone JW, et al. (2019). Dietary protein and muscle mass: Translating science to application and health benefit.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566799/

Facts about saturated fats. (2022).
https://medlineplus.gov/ency/patientinstructions/000838.htm

Gardner CD, et al. (2018). Effects of low-fat vs low-carbohydrate diet on 12-month weight loss in overweight adults and the association with genotype pattern or insulin secretion.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5839290/

Hervik AK, et al. (2019). The role of fiber in energy balance.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6360548/

Thermic effect of food (TEF). (2022).
https://examine.com/outcomes/thermic-effect-of-food/

What are proteins and what do they do? (2021).
https://medlineplus.gov/genetics/understanding/howgeneswork/protein/

Body weight planner. (n.d.).
https://www.niddk.nih.gov/bwp

Dietary guidelines for Americans 2020–2025. (2020).
https://www.dietaryguidelines.gov/sites/default/files/2020-12/Dietary_Guidelines_for_Americans_2020-2025.pdf

Espinosa-Salas S, et al. (2023). Nutrition: Macronutrient intake, imbalances, and interventions.
https://www.ncbi.nlm.nih.gov/books/NBK594226/

Kim JY. (2020). Optimal diet strategies for weight loss and weight loss maintenance.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8017325/

Moris JM, et al. (2022). Nutrient-based appetite regulation.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284573/

Wan Y, et al. (2023). Association between changes in carbohydrate intake and long term weight changes: Prospective cohort study.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10523278/

What should my daily intake of calories be? (2023).
https://www.nhs.uk/common-health-questions/food-and-diet/what-should-my-daily-intake-of-calories-be/

About The Author

Anthony is the creator of the world’s first macro calculator and a veteran macro coach with over 15 years of experience. Through his expertise and dedication, Anthony has transformed the lives of more than 50,000 clients using the Macro Blueprint, a program meticulously designed to simplify dieting and enhance overall wellness. 

As the founder of IIFYM.com, Anthony offers comprehensive digital diet programs and personalized macro suggestions to help individuals achieve their weight loss goals, improve sleep, boost focus, and build confidence.

Whether you want to track macros, engage in flexible dieting, or optimize your metabolism health, Anthony’s strategies cater to diverse needs. From recomp macros to bodybuilding macros, discover how you can take control of your nutrition and life with Anthony’s proven methods.

In This Article

The Perfect Macro Ratio

Macro Ratios Are Outdated—and What You Need Instead When it comes to nutrition, there’s one myth that refuses to die: the perfect Macro Ratio. You’ve probably heard it before: eat 40% carbs, 40% protein, 20% fat, or some other formula that’s marketed as the perfect Macro Ratio for your goals.

15 Min Reading

Why Diets Fail

The #1 Reason Your Weight Loss Efforts Fail Do you feel like your weight struggles are because you’re lazy, weak, or undisciplined? If that toxic story has been playing on repeat in your head, it’s time to hit stop. Negative self-talk like this is one of the hidden reasons why

15 Min Reading

IIFYM.com Macros & Fitness
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.