How much protein do you actually need (and where to get it)

Protein is the one macronutrient the field mostly agrees on: if you lift weights, you need more of it than the average person. Everything else (how many meals, which powder, what timing) is detail.

The number you need

• Training and want muscle: 1.6–2.2 g of protein per kilogram of body weight per day.
• Dieting to lose fat: the upper end, 2.0–2.4 g/kg — protein protects muscle when calories are low.
• Not training: 0.8–1.2 g/kg is enough.

For an 80 kg person that is roughly 130–175 g of protein a day. It sounds like a lot until you see it in food.

How much protein is in what

• Chicken, thigh or breast (100 g raw) — 22 g
• Lean beef (100 g) — 21 g
• Egg (one large) — 6 g
• Greek yoghurt 2 % (200 g) — 18 g
• Cottage cheese / quark (100 g) — 12–17 g
• Tuna in water (145 g tin) — 26 g
• Chickpeas, cooked (200 g) — 16 g
• Lentils, cooked (200 g) — 18 g
• Protein powder (one 30 g scoop) — 24 g

What that looks like in a day

An example for 80 kg (about 150 g of protein), nothing exotic:

• Breakfast: 3 eggs + 200 g Greek yoghurt = 36 g
• Lunch: 200 g chicken + rice or potatoes + salad = 44 g
• Snack: a tin of tuna or 200 g quark = 26 g
• Dinner: 200 g beef, or 250 g lentils with an egg = 42 g

That is about 148 g of protein without a single supplement.

Do you need protein powder

You do not need it, but it is convenient. Powder is just food in an easier form — there is nothing in it that is not in yoghurt or chicken. It makes sense if:

• you cannot hit your number from meals (work, travel, small appetite),
• it is cheaper per gram of protein than meat where you live,
• you do not feel like eating right after training.

If you already eat plenty of meat, eggs and dairy, powder is an extra cost, not a condition for progress.

Timing: does it matter

Total daily intake matters most. Timing is fine-tuning: 3–5 meals with 25–45 g of protein each works better than one huge meal, because protein synthesis gets stimulated several times a day. The 30-minute "anabolic window" after training is a myth — you have hours, not minutes.

Common questions

Does high protein damage your kidneys?

In healthy people there is no evidence that intakes up to 2.5 g/kg harm the kidneys. If you have kidney disease that is a different question — then the amount is set by your doctor, not your trainer.

Can I get enough without meat?

Yes, but it needs planning: lentils, chickpeas, tofu, tempeh, seitan, yoghurt and eggs (if you eat them), plus soy or pea protein if needed. Vegetarians usually have to watch intake a little more closely because plant foods are less protein-dense.

When is it too much?

Above roughly 2.5 g/kg there is no extra benefit for muscle, and the food you crowd out (carbohydrates) is what fuels your training.

The short version

• 1.6–2.2 g of protein per kilogram, per day.
• Split it across 3–5 meals of 25–45 g.
• Meat, eggs, dairy, lentils and chickpeas do the job.
• Powder is convenience, not magic.
• Total daily intake beats timing every time.