Build Desk
Protein Guide: How Much You Actually Need
Protein is the most important number in your diet if you train, and the one most men quietly fall short on — especially men eating mostly plant-based. The target is not mysterious, the food math is not hard, and whey is a convenience, not a requirement. Let us do the numbers properly.
How much you actually need
For building or keeping muscle while training, research consistently lands around 1.6-2.2 g of protein per kg of body weight per day, with most of the benefit captured by about 1.6-1.8. For a 155 lb (70 kg) man, that is roughly 115-150 g a day. Sedentary men need less (about 0.8-1 g/kg keeps basic health), but the average diet delivers only about 50-70 g a day in surveys — so a training man eating "normally" is often at half his target without knowing it. Split it across 3-4 meals; total daily intake matters most.
Plant-based sources, in grams
Numbers per typical serving: a glass of milk (250 ml) ≈ 8 g. Greek yogurt (200 g) ≈ 18-20 g. Cottage cheese (100 g) ≈ 12 g. Tofu (150 g) ≈ 15-18 g; tempeh (100 g) ≈ 19 g. Lentils (1 cup cooked) ≈ 18 g. Black beans or chickpeas (1 cup cooked) ≈ 14-15 g. Eggs (if you eat them) ≈ 6 g each. Whey (1 scoop) ≈ 24 g. Peanut butter (2 tbsp) ≈ 8 g. A plant-based day built as: milk + Greek yogurt + tofu at one meal + lentils and beans at the other two lands near 100-120 g, no powder needed.
Whey: facts without the drama
Whey is simply the protein fraction of milk, filtered and dried. It is a complete protein, digests fast, and per gram of protein it is usually cheaper than chicken or Greek yogurt (roughly $0.80-1.20 per 25 g serving for established brands). It is not a steroid, it does not damage healthy kidneys at normal intakes in the studies available, and it has no timing magic — the "30-minute window" is a myth; hit your daily total. The real risks are fake and spiked products: buy from the brand’s own store or established retailers, check the seal, and be suspicious of prices 40% below market.
Meat, eggs and fish: cost per gram
Chicken breast (100 g cooked) ≈ 31 g protein — usually the cheapest quality source per gram. Whole eggs ≈ 6 g each and excellent value. Fish (100 g) ≈ 20-24 g depending on type. If budget is tight, the efficient stack is eggs + lentils + beans + milk on most days and chicken or fish a few times a week. Cooking losses are minor for protein; what matters is the cooked weight you actually eat, not the raw weight on the packet.
Putting a day together (165 lb man, ~140 g target)
Breakfast: 3 eggs + a glass of milk (≈ 26 g) or Greek yogurt + oats for a no-egg day (≈ 22 g). Lunch: 2 cups lentils or beans + rice/bread + a yogurt cup (≈ 32 g). Evening: whey shake or a tofu/tempeh stir-fry (≈ 25 g). Dinner: 150 g chicken (≈ 45 g) or a salmon or bean-and-cheese plate (≈ 30 g). Water, vegetables and total calories still matter — protein on top of a junk diet builds a stronger man on a worsening base. Track for one week in any free app; after that, your eye learns the portions.
What to look for
- Greek yogurt — The easiest high-protein staple — roughly 18-20 g protein per 200 g cup, no cooking needed.
- Whey protein (verified brand) — Only to close a gap food cannot. Check authenticity; never buy suspiciously cheap.
Common questions
Is 2.2 g/kg dangerous for kidneys?
In healthy adults, studies up to and beyond this range have not shown kidney damage. Men with existing kidney disease are a different case and must follow their doctor. If you have any kidney history, get cleared before high-protein dieting.
Can I build muscle as a vegetarian without supplements?
Yes — the requirement is total protein and total calories, not the source. Soy, dairy, beans, lentils and eggs (if eaten) cover it. It takes more deliberate planning than a meat-based diet, which is why many vegetarians use one whey scoop as insurance.
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