Nutrition & supplements

How much protein do you need per day?

Daily protein by weight and goal, plus a copyable creatine + protein protocol card (maintenance or loading).

Quick answer

Daily protein = body weight (kg) × grams per kg by goal. For muscle gain, ISSN ranges are 1.6–2.2 g/kg: at 75 kg that is 120–165 g/day, or about 30–40 g per meal across four meals. This page also builds a copyable creatine + protein protocol (maintenance or loading) you can paste into notes or a forum thread.

Protein per day

120 – 165 g

Per meal (4 meals)
30 – 41 g
Reference used
1.6 – 2.2 g per kg of body weight
Creatine per day
3 g
When
Every day, including rest days

Your protocol

SmartBio — Creatine + protein protocol
Weight: 75 kg · Goal: Muscle gain · Creatine phase: Maintenance

Creatine: 3 g/day (every day, including rest days)
Protein: 120–165 g/day
Distribution: ~30–41 g per meal (4 meals)

General guidance only — not medical or nutrition advice. For specific needs, consult a professional.
https://smartbio.live/calc/protein-intake

Copy-paste into a thread, notes or chat — or take a screenshot.

Creatine monohydrate 3 gAmazon →Affiliate linkProtein powder (whey & alternatives)Amazon →Affiliate linkShaker bottleAmazon →Affiliate linkKitchen food scaleAmazon →Affiliate link

Creatine: typically 3–5 g monohydrate daily (optional loading 0.3 g/kg for 5–7 days). Protein ranges follow sports-nutrition guidelines (ISSN). Food first; powder fills gaps. Drink more water than usual with creatine. General guidance only — not medical or nutrition advice. For specific needs, consult a professional.

How it works

The RDA minimum is only 0.8 g/kg — enough to prevent deficiency, not to optimise training. Spread intake across the day; whole foods first, whey protein powder only fills gaps. A kitchen food scale and shaker bottle make the protocol easier to follow. General guidance only — not medical or nutrition advice.

Highlighted links go to Amazon.

Frequently asked questions

Is 2 g/kg of protein too much?+

For healthy adults, up to 2.2 g/kg long-term is well studied and safe. Kidneys in healthy people handle it fine. If you have kidney disease, consult your doctor before high-protein diets.

Do I need more protein when cutting calories?+

Yes — during a calorie deficit, aim for 1.8–2.4 g/kg to preserve muscle while losing fat. Higher protein also increases satiety, which helps adherence on a diet.

Plant-based — can I hit protein targets?+

Absolutely. Combine legumes, tofu, tempeh, seitan, whole grains and dairy alternatives across meals. Plant proteins are often lower in leucine per serving — slightly higher total grams (or a leucine-rich source like soy) compensates.

When is the best time to eat protein after training?+

The "anabolic window" is wider than marketing claims: any meal within 2–3 hours post-workout works. Total daily protein and training consistency matter far more than exact timing.

As an Amazon Associate I earn from qualifying purchases — the price does not change for you.

More calculators — Nutrition & supplements

← All calculators