How much protein do builders need per day?

Most builders and manual workers need between 1.6g and 2g of protein per kilogram of bodyweight per day. For a 90kg builder, that's 144–180g of protein daily — significantly more than a sedentary person's 0.8g/kg.

Is whey protein safe to take every day?

Yes. Whey protein is a natural food-derived supplement and is safe for daily use in healthy adults. The only people who should avoid it are those with a milk allergy or severe lactose intolerance.

When is the best time to take protein powder as a builder?

The most effective times are within 30 minutes after finishing work (when muscle protein synthesis is elevated) and first thing in the morning if you skip breakfast. Timing matters less than total daily intake.

Can I use protein powder to replace meals on site?

A protein shake can supplement a meal but shouldn't replace a full meal entirely. Pair a shake with a banana, oats, or a handful of nuts to get a balance of protein, carbohydrates, and fats.

Best Protein Powder for Builders: A No-Nonsense Guide

The best protein powder for builders is one you'll actually take. After a ten-hour day on site, the last thing you want is a shake that tastes like chalk and takes twenty minutes to mix. We've tested the top options for value, taste, and macros — here's what works.

Why Builders Need More Protein Than the Average Person

Manual labour breaks down muscle tissue. Carrying blocks, drilling overhead, and shifting materials all create micro-tears in muscle fibres that need protein to repair. Studies consistently show that people doing heavy manual work need 1.6–2g of protein per kg of bodyweight per day — roughly double the NHS recommendation for sedentary adults.

Most builders eat far less than this. A sandwich at lunch, a pasty from the van, and a ready meal in the evening rarely adds up to more than 80–100g of protein. The gap between what you eat and what you need is exactly where protein powder earns its place.

What to Look for in a Builder's Protein Powder

Protein content per serving: Aim for at least 20g of protein per 30g scoop. Anything less is watered-down and poor value.

Cost per gram of protein: This is the only metric that matters for budget-conscious tradespeople. Divide the total grams of protein in the bag by the price. Anything under 5p per gram of protein is good value.

Mixability: You'll be making this in a shaker bottle, probably in a van or a cold site cabin. It needs to dissolve in cold water without lumps.

Taste: You'll be drinking this every day. Get a flavour you can tolerate — chocolate or vanilla are safe bets, unflavoured is fine if you're mixing with milk.

Top 3 Protein Powders for Builders

1. MyProtein Impact Whey Protein — Best Overall Value

MyProtein Impact Whey consistently comes out on top for value in the UK. At around £35–45 for 2.5kg, you're getting approximately 25g of protein per serving at roughly 3.5p per gram of protein.

It mixes easily in cold water, the flavours are palatable, and MyProtein regularly runs 30–40% off sales. The Chocolate Smooth and Natural Banana flavours are the most consistently well-reviewed by tradespeople in our testing.

Macros per serving (30g): 103 kcal, 21g protein, 1.9g fat, 1g carbs

2. Bulk Pure Whey Protein — Best for Bulk Buyers

Bulk's own-brand whey is comparable to MyProtein in quality and often marginally cheaper when you buy the 5kg bag. The flavour range is smaller but the Natural Chocolate and Unflavoured variants are reliable.

Particularly good if you're splitting an order with a workmate — the 5kg bag works out at around 3.2p per gram of protein when on sale.

3. Holland & Barrett Complete Whey Protein — Best for Convenience

Not the best value on paper, but Holland & Barrett has high street stores across the UK, which matters if you need protein today and don't want to wait for delivery. Their own-brand whey is decent quality and regularly goes on two-for-one.

Vegan Options

If you're vegan or avoid dairy, the best options are:

Bulk Vegan Protein Blend — pea and rice protein that hits all essential amino acids
MyProtein Vegan Blend — similar profile, slightly better flavour

Vegan protein is inherently slightly less bioavailable than whey, so aim for the higher end of the 1.6–2g/kg range.

How to Fit Protein Powder into a Builder's Day

The easiest approach is a shake as soon as you get home from site, before you've had a chance to sit down and forget about it. Mix 30g with 300ml of milk (adds another 10g protein) and drink while you're getting changed.

If you struggle to eat breakfast at 5am, a shake on the drive in is an easy protein boost that won't upset your stomach on an empty site.

The Bottom Line

Builders need more protein than most people and often eat less than they think. A quality whey protein like MyProtein Impact Whey is the cheapest, most convenient way to close that gap. Buy in bulk during a sale, keep a scoop in your van, and you'll notice the difference in recovery within two weeks.