How Much Protein Do You Actually Need?
You’ve heard the numbers thrown around – “1 gram per pound,” “0.8 grams per kilogram.” “just eat more, you’ll be fine.” Most of it isn’t working exactly. It’s just imprecise in a way that makes it useless when you’re standing in a grocery store trying to hit a protein target.
Here’s the honest version, backed by the actual research standard sports nutrition organizations use.
The Range, Not a Number
The International Society of Sports Nutrition’s position on protein intake for people who exercise puts the effective range at roughly 0.65-1.1grams per pound of bodyweight per day. Not one number – a range, because where you land in it depends on real variables: how much you’re training, whether you’re actively trying to lose fat (protein needs go up when calories go down, to protect muscle), and how much muscle you’re already carrying.
This isn’t a small range. For a 180lbs person, that’s the difference between 117g and 198g of protein a day – nearly double. So “just hit your protein number” isn’t specific enough to actually act on.
Where You Actually Land
The ISSN range doesn’t come pre-split by goal – this next part is a reasonable inference from it, not a direct quote, so here’s the reasoning instead of just the number:
Maintaining, moderate training (3-4x/week): aim for the lower-middle of the range, around 0.7-0.8g/lb. At maintenance, protein isn’t fighting a calorie deficit for muscle, so there’s less pressure to sit at the top end.
Actively cutting calories while trying to hold onto muscle: push toward the top of the range, 0.9-1.1g/lb. Natural bodybuilding research on cutting phases (Helms, Aragon & Fitschen, 2014) specifically recommends elevated protein during a deficit to protect lean mass – and separate research shows the reason it matters more here: once a calorie deficit passes roughly 500k kcal/day, gains in lean mass from training largely stop happening on their own, so protein is doing more of the protective work by itself.
Building muscle in a calorie surplus: middle of the range is usually sufficient; more isn’t harmful, but it isn’t doing extra work either past a certain point.
For that same 180lb person: maintenance sits around 126-144g/day, an active cut around 162-198g/day.
Why This Matters More Than People Think
Undershooting this range while training hard and eating in a deficit is one of the most common reasons people lose muscle along with fat during a cut – not because they weren’t training hard enough, but because their protein intake wasn’t defending the muscle they already had. Overshooting the range by a lot doesn’t hurt, but it also doesn’t buy you anything extra – the return flattens out well before “as much as possible” territory.
The Practical Version
You don’t need to weigh every gram forever. Pick your number based on where you are (maintaining, cutting, building), round to something livable, and build your meals around hitting consistently – consistency across a week beats precision on any single day.
If you want to see exactly how that plays out meal by meal, that's what the newsletter’s recipe breakdowns are built for – every recipe comes with the full macro math already done. Sign up for the newsletter that is coming soon!