How Much Protein Do You Actually Need? The Honest Answer

Walk into any supermarket in 2026 and protein is shouting at you from packaging that has no business mentioning it. Protein water. Protein crisps. Protein ice cream. It is the most successful nutrition marketing story of the decade, and like all good marketing it is built on a real fact wrapped in a lot of noise.

The real fact: most people would benefit from a bit more protein, more evenly spread. The noise: the idea that you need a scoop of powder to achieve it.

The numbers, plainly

The official minimum in most countries is around 0.8 grams per kilogram of body weight per day. That number is widely misunderstood. It is not a target for good health — it is the amount at which the average person avoids a measurable deficiency. It is a floor, not a goal.

What the research on muscle maintenance, satiety and healthy ageing actually points to:

• Generally active adults: roughly 1.2–1.6 g/kg per day.
• Training seriously, or trying to lose fat while keeping muscle: roughly 1.6–2.2 g/kg.
• Over 65: the higher end, around 1.2–1.5 g/kg. Older muscle is less responsive to protein, so it needs more of a push.
• Above about 2.2 g/kg: no reliable additional benefit for most people. You are producing expensive urine.

For a 70 kg adult, that is somewhere between 85 and 110 grams on a typical day. Not extreme. Not a shaker bottle.

What 30 grams actually looks like

• A chicken breast, about 120 g cooked
• A tin of tuna and a boiled egg
• 170 g Greek yoghurt with a tablespoon of nut butter
• A cup of cooked lentils plus a slice of wholegrain toast
• Three eggs and a slice of cheese
• 200 g firm tofu
• A cup of cottage cheese

Plant-based? Two things to know

First, the "incomplete protein" panic is largely outdated. You do not need to combine rice and beans at the same meal like a chemistry set; your body maintains a pool of amino acids across the day. Eat a variety of plants and you will be fine.

Second, plant proteins are generally less digestible and lower in leucine, the amino acid that acts as the trigger for muscle building. The practical fix is simple: aim for the higher end of the range, roughly 10–20% more, and lean on soy, lentils, chickpeas, seitan and quinoa rather than trying to get there on nuts alone.

Do you need powder?

No. It is a convenience product, not a health product. If you struggle to hit your target with food — travelling, poor appetite, recovering from illness, on a GLP-1 medication — a scoop of whey or soy protein is a perfectly reasonable tool. If you eat well and hit your number, powder adds nothing but cost.

The kidney myth

The claim that high protein damages healthy kidneys has been examined repeatedly and does not hold up in people with normal kidney function. If you have existing kidney disease, that is a different situation entirely and your protein intake should be set by your doctor or renal dietitian — not by an article.