Why Macros Don’t Matter (Apart From Protein)

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TL;DR: Make sure you hit your calorie targets, then your protein target. After that your carb/fat ratio doesn’t matter that much.


Yeah, I went there, your macros DON’T matter.

Ok that might be a bit extreme, there are some caveats to this this claim; if you’re at the elite level of physique competitions, or trying to optimise your performance at the very top level of your chosen sport, they probably do matter a bit, but for the average joe (yeah, sorry you are an average joe), they are way way down the list of stuff you should worry about when trying to gain muscle or drop body fat.

Just to go into a little more detail about these caveats, here’s some more detail on situations where macros might matter;

(If you aren’t one of these and you’re not interested then you can skip the next few paragraphs).

Elite Level Physique Competitors

At the very end of a long, aggressive dieting phase, physique competitors may wish to increase their ratio of carbs in order to optimise food volume – carbs are generally more calorie sparse compared to fat, so when on very low calories, increasing carbs and lowering fat may help to increase satiety.

Carbs may also be increased further (at the expense of fat) in the last couple of days before a competition in order to max out muscle gylcogen stores. This will make muscles appear bigger because they’re full of glycogen (stored carbohydrate).

Throughout the duration of a diet where fat loss is the primary goal, protein may be increased for its thermogenic effects (the body requires more energy to digest protein than carbs or fat), therefore, a diet phase where protein is higher may result in more fat loss than a diet that’s lower in protein (all else being equal).

All these tactics will make very small differences, but at the elite level, these may be the difference between 1st and 2nd place.

Sports Professionals at the Top of their game

It’s generally accepted that carbohydrate is the optimal fuel source for short to medium term intense activity, therefore sports people might do well to increase their level of carbohydrates (over fat) around big games or events to maximise performance.

Some sports where this rule might not apply are ultra marathons or powerlifting.

Ultra marathons are performed at relative low intensities over very long periods of time, meaning fat will most likely be the optimal fuel source.

Powerlifting involves bouts of force production which take place over a matter of seconds, too short a period for carbohydrates to be utilised (ATP is the preferred fuel source for quick, powerful muscular contractions), powerlifters may want to adjust their macronutrients based on this.

People Looking to Optimise Nutrient Density

A diet that prioritises nutrient density may be high in protein and fat and lower in carbohydates.

That is NOT to say that predominantly carbohydrate foods aren’t nutrient dense – fibrous and starchy vegetables can both be nutrient dense but generally contain lower calories, so will therefore make up a smaller proportion of the overall macro split.

Right, enough of the disclaimers; why don’t Macros matter for EVERYONE ELSE?

Actually one more disclaimer.

Protein DOES matter


Protein does some cool stuff, such as;

  • Aids muscle building (if your training volume is high enough to allow it)
  • Triggers muscle protein synthesis (if leucine thresholds are met)
  • Has more of a thermogenic effect (requires more calories to digest) than fat or carbs, meaning that just eating more protein can help you burn a few more calories, which is useful on a fat loss diet
  • Has a high satiety rating (fills you up for a long time), again very useful on a fat loss diet as it means you won’t be as hungry

So protein matters, but what matters more than protein?



Because if you want to lose body fat, you will fail unless you’re in a calorie deficit.


If you want to gain muscle you’ll struggle* unless you’re in a calorie surplus

*I say struggle because there are studies which provide evidence that muscle can be built in a deficit, but I wouldn’t recommend this approcah

If you get your calories wrong, everything else you’re doing to try and achieve your goal, whether that’s messing around with your macro ratios or drinking TEATOX products (if you do this you’re a moron) won’t have ANY effect.

Check out this digram from Eric Helms.

This illustrates the things you should pay the most attention when working towards fat loss or muscle gain.

The things at the bottom of the pyramid are the most important, the stuff at the top is least important.

If you’re not achieving  the stuff at the base of the pyramid, everything else above it becomes irrelevant.

Based on what I’ve just said however, I’dd ad in an extra layer above ‘Energy Balance’ and below ‘Macronutrients’, – Protein.

Then I’d change ‘Macronutrients’ to ‘Carbs and Fat’, like so;

I believe that hitting protein targets is the next most important thing after hitting your calorie target, and after that your fat/carb ratio is largely irrelevant.

So why do people harp on about macros so much?

Because fitpros want to overcomplicate things to confuse people so they can charge top dollar for nutrition plans with ‘optimised’ macro nutrient ratios.

‘Hey Bro, you need to be on 20/20/60 for muscle gain and 30/30/40 for fat loss’.


There is no optimal ratio, aside from what you personally prefer.

For muscle gain or maintenance, it’s generally accepted that protein should be around the 1g per lb of bodyweight mark, so you should probably at least hit that (no biggie if you go over that amount).

Aside from that, just freestyle it.

Carbs fuel high intensity training, so as long as you have enough energy to complete your training sessions with sufficient intensity, increasing them won’t have any discernable effect on your goals.

Fat helps with testosterone production, so as long as you’re getting enough to maintain adequate levels, increasing them won’t have any effect.

These thresholds will vary depending on the individual so the best way to determine your own ‘optimal’ ratio is to experiment.

Here’s my macro breakdown for the last 3 days.

mfp screenshot 2
mfp screenshot 3

You can see that on these three consecutive days my macro split is totally different.

My target for protein 180g per day (because I weigh 180lbs), I’ve gone above that the last three days, but that’s fine. I’ve also hit my calorie target each day. Then I’ve just made up the rest with varying amounts of carbs and fat.

It’s pretty much that simple, you don’t need to stress over ‘optimal’ ratios, because such a thing doesn’t exist.

What Do I Do Now?

1.Establish a daily and/or weekly calorie target, make sure you’re hitting that consistently

2. Establish a daily protein target, make sure you’re hitting that consistently

3. Fill the rest of your calories with carbs and fats in a ratio that suits you

If you’re already tracking your calories, great.

Consider not placing so much attention on your macro split (with the exception of protein). If your trainer/coach/guy at work who goes to the gym now again says you NEED a certain macro split to gain muscle or lose fat, that’s a pretty conclusive signal that they have no idea what they’re talking about.

NOW, if sticking to a precise ratio each day works for you and makes you happy, great, keep doing that, just know that it’s not necessary. If you really do want a set ratio, here’s a handy macro calculator for you;

Get this Widget

Let’s get away from this idea that we need to actively track macros.

Track your calories and My Fitness Pal will do the macro-tracking leg work for you.

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