Protein is the raw material for staying strong. After fifty, the body gets a little less efficient at using the protein you eat, so the maths shifts slightly. None of this is complicated, and you do not need powders shipped from abroad. Here is the calm version of how much you need and how to get it from ordinary British food.
Why protein matters more after 50
As we age, a normal process called anabolic resistance means the same meal triggers a smaller muscle-building response than it did at thirty. Combined with the gradual muscle loss (sarcopenia) we discussed in the strength guide, this is why protein deserves a bit more intention after fifty. Pairing a reasonable protein intake with strength training gives your body the materials and the signal to hold on to muscle.
This is not about bodybuilding. It is about keeping the muscle that lets you live independently. The two work together: train to send the signal, eat protein to supply the bricks.
How much do you actually need?
In the UK, the Scientific Advisory Committee on Nutrition (SACN) sets the Reference Nutrient Intake (RNI) for protein at 0.75g per kg of bodyweight per day for general adult health. For a 70kg person that is about 53g a day, enough to avoid deficiency for someone who is sedentary.
But if you are active and training, the picture is different. Sports nutrition guidance for older adults commonly points to around 1.2g per kg per day (some bodies go up to 1.6g). For that same 70kg person, 1.2g/kg is about 84g a day. The RNI is a floor, not a target, and an active fifty-plus body benefits from sitting well above it.
A simple way to estimate: take your weight in kg and multiply by 1.2. That is your rough daily target if you train a couple of times a week. If you are unsure what is right for you, your GP or a dietitian can help.
Spread it across the day
Muscle protein synthesis responds best to a steady supply rather than one large dose. Research suggests roughly 25-40g of protein per meal is enough to maximally stimulate that response in most older adults. The practical takeaway: include a proper protein source at breakfast, lunch and dinner, rather than eating little all day and a huge plate at night.
Breakfast is the meal most people short-change. A bowl of cereal with milk and no protein to speak of leaves you playing catch-up. A couple of eggs or a pot of Greek yogurt changes that immediately.
Ordinary British food, worked examples
You do not need anything exotic. Here is what a realistic day looks like for someone aiming at roughly 90-100g of protein:
Breakfast: Three eggs (about 21g) scrambled with a handful of spinach, plus half a tin of baked beans (about 9g) on toast. Around 30g.
Lunch: A tuna mayo sandwich (one 145g tin of tuna, about 33g) with a 100g pot of Greek yogurt (about 10g) on the side. Around 43g.
Dinner: A 120g chicken breast (about 35g) with half a tin of lentils (about 9g) and vegetables. Around 44g.
That totals roughly 117g for the day, comfortable for a 75-80kg active person, with a little to spare. Swap the tuna for a salmon fillet, the chicken for lean beef or tofu, and the eggs for cottage cheese; the maths stays the same.
Other easy British staples: a glass of semi-skimmed milk (200ml, about 7g), a 30g piece of cheddar (about 8g), a pork chop, prawns, or a bean and lentil soup. Vegetarians do perfectly well on eggs, dairy, lentils, beans, tofu and tempeh, just aim for a mix across the day.
Timing around training
You do not need to chase the clock. Having a protein-rich meal within a few hours of a session is plenty; the old urgency around a narrow "window" has been quietly retired by the evidence. Train, eat a normal meal afterwards, and get on with your day.
A note on supplements and on health
A whey or plant-based powder is a convenient top-up if you find it hard to hit your target from food, nothing more than that. It is not magic and it does not replace meals. If you have kidney disease, or any condition where protein intake matters, please talk to your GP before raising it. This guide is general information; it is not tailored to your health and it is not medical advice.
Small, repeated choices beat heroic ones. A bit of protein at each meal, a couple of sessions a week, and time, that is the quiet formula. You have got this.