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How Much Protein Do You Actually Need?

Protein is the one macronutrient almost everyone under-eats and over-complicates. You don't need a spreadsheet or a lab test to get it right — you need one number and a way to hit it most days. Here's the simple version, grounded in what the research actually shows.

The short answer

For most active adults, a practical daily target is 0.7 to 1.0 grams of protein per pound of body weight (roughly 1.6–2.2 g/kg). That range is where the bulk of the evidence lands for building or preserving muscle. If you're sedentary and just want general health, the floor is lower — around 0.5 g/lb — but there's little downside to aiming higher.

Your goal	Target (per lb of body weight)	Example at 160 lb
General health / maintenance	0.5–0.7 g	80–112 g/day
Fat loss (preserve muscle in a deficit)	0.8–1.0 g	128–160 g/day
Muscle gain	0.7–1.0 g	112–160 g/day

Carrying a lot of extra body fat? Base the number on your goal weight or your lean mass rather than your current scale weight — otherwise the target comes out unnecessarily high.

Why protein matters more when you're dieting

When you eat in a calorie deficit, your body can pull energy from either fat or muscle. Two things bias it toward burning fat and keeping muscle: resistance training and eating enough protein. Protein also has the highest "thermic effect" of the three macros — your body burns roughly 20–30% of protein calories just digesting it — and it's the most filling per calorie, which makes a deficit far easier to stick to. That's why fat-loss targets sit at the higher end of the range.

Spread it across the day

Total daily protein matters most, but distribution helps. Aim for 3–4 meals with 25–40 g each rather than a tiny breakfast and a giant dinner. Each meal with ~0.15 g/lb of protein maximally stimulates muscle protein synthesis; stacking it all at night leaves gaps earlier in the day. You don't need to be perfect — just avoid the common pattern of near-zero protein until evening.

Good sources (and rough protein per serving)

Chicken breast — ~26 g per 3 oz cooked
Greek yogurt (plain, non-fat) — ~17 g per ¾ cup
Eggs — ~6 g each
Canned tuna or salmon — ~20 g per can
Lentils / beans — ~8–9 g per ½ cup cooked
Tofu / tempeh — ~10–15 g per ½ cup
Cottage cheese — ~14 g per ½ cup
Whey or plant protein powder — ~20–25 g per scoop

Animal sources are "complete" (all essential amino acids). Plant sources work well too — just eat a variety across the day (for example, beans plus grains) and lean a little higher on total intake, since plant protein is slightly less efficiently used.

Hitting your number on a budget

The cheapest reliable protein per dollar usually comes from eggs, canned fish, dried or canned legumes, whole chickens, and large tubs of plain Greek yogurt or cottage cheese. A single scoop of protein powder is often cheaper than a protein bar for the same 20+ grams. See our meal prep on a budget guide for a full system.

Is high protein safe? For healthy people, protein intakes in this range are well tolerated and not linked to kidney damage. If you have existing kidney disease or another medical condition, set your target with your doctor.

Let MealAnvil do the math.

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