The Best Supplements for Tradies (And What's a Waste of Money)

If you've ever stood in a supplement shop wondering whether the £60 pre-workout or the "testosterone booster" is worth it — this is the breakdown you need. What actually works, what's backed by solid evidence, and what's clever packaging and not much else.

First: Do Tradies Actually Need Supplements?

Short answer: sort your food out first. Supplements are exactly that — they supplement a solid diet, they don't replace one.

If you're eating a reasonable amount of protein, getting decent sleep, and not destroying yourself with alcohol every weekend, most of your bases are covered through food. Supplements fill specific gaps.

That said, tradies do have some genuine nutritional gaps that are harder to fill through food alone — especially if your diet is inconsistent or you're working long shifts with limited meal options. So yes, some supplements are worth it. Just not the ones being marketed hardest.

What Actually Works

Protein Powder — Worth It

Not exciting, not flashy, but protein powder is genuinely useful. If you're not hitting your daily protein target through food (which for most active tradies is 1.6–2g per kg of bodyweight), a shake fills the gap cheaply and conveniently.

A decent whey protein gives you 20–25g of protein per scoop, mixes in 30 seconds, and costs 60–80p per serving when you buy in bulk. It's not a magic muscle builder — it's just a convenient food source.

What to buy: A plain unflavoured or vanilla whey concentrate from a reputable brand. No need for the fancy "whey isolate" unless you're lactose intolerant. Avoid the ones loaded with artificial sweeteners and colouring — your stomach will thank you.

Creatine — Absolutely Worth It

Creatine is the most well-researched supplement in sports science. Hundreds of studies confirm it works. It increases your muscles' phosphocreatine stores, which means better strength, better power output, and faster recovery.

For tradies, this isn't just useful in the gym — it translates to having more in the tank physically across a working day. If you're doing heavy lifting, repeated efforts, or high-intensity work, creatine has a real-world benefit.

What to buy: Creatine monohydrate. That's it. The cheapest form, the most studied, just as effective as the fancy versions. 3–5g per day, every day, in a glass of water. No loading phase needed. About 50p a day at most.

Vitamin D — Essential in the UK

Here's the thing about working outside in the UK: it still doesn't get you enough vitamin D for half the year. Between October and March, UV levels are too low to produce meaningful vitamin D even if you're in the sun all day. In Australia and NZ it's less of an issue, but worth checking anyway.

Vitamin D is critical for bone health, immune function, testosterone levels, and mood. Low vitamin D is linked to fatigue, low energy, low testosterone, and increased risk of injury. The NHS recommends most UK adults supplement through winter.

What to buy: Vitamin D3 (not D2), 1,000–2,000 IU daily. Dirt cheap, widely available, and you'll likely feel the difference within a few weeks.

Magnesium — Underrated

Most people don't get enough magnesium through food because modern soil is depleted and processed food strips it out. For tradies specifically, you lose magnesium through sweat — if you're working physically and sweating regularly, your demand is higher.

Magnesium supports muscle function, sleep quality, nervous system recovery, and reducing cramps. If you're getting muscle cramps on site or sleeping poorly, low magnesium is one of the first things to address.

What to buy: Magnesium glycinate or malate — better absorbed than the oxide form that most cheap tablets use. 300–400mg before bed. Good for sleep as a bonus.

Omega-3 (Fish Oil) — Worth Considering

If you're not eating oily fish two or three times a week (most blokes aren't), a fish oil supplement covers you for omega-3 fatty acids. These reduce systemic inflammation, support joint health, and are linked to better heart health and cognitive function.

For tradesmen doing repetitive physical work, joint inflammation is a long-term issue. Getting omega-3s in consistently is a sensible long-game move.

What to buy: A decent quality fish oil with at least 500mg combined EPA+DHA per serving. Refrigerate it to prevent oxidation. About £10–15 a month.

What's a Waste of Money

Fat Burners — Bin Them

Fat burners are stimulants dressed up as science. The "active ingredients" are typically high-dose caffeine, some herbal extracts with dodgy evidence, and a lot of marketing. The weight loss effects are minimal, the side effects can include heart palpitations and poor sleep, and when you stop taking them the weight comes back because nothing about your habits changed.

Save your money. If you want to drop weight, sort out your food and add some cardio. There's no shortcut in a capsule.

Most Pre-Workouts — Marginal at Best

Here's the truth about pre-workout: you're mostly paying for caffeine and neon colouring. The active "performance" ingredients are usually under-dosed compared to what the studies use, and the crash afterwards is real.

A strong black coffee 30–45 minutes before training does most of what an expensive pre-workout claims to do. For a fraction of the price.

Testosterone Boosters — No

There is no supplement available over the counter that meaningfully raises testosterone in a healthy adult male. The ingredients in "test boosters" — tribulus terrestris, D-aspartic acid, various herbal extracts — have either weak evidence or evidence that flat-out doesn't support the claims on the packaging.

If you genuinely suspect low testosterone, see a GP. That's a medical issue that needs blood work, not a £40 supplement.

BCAAs — Unnecessary

If you're already eating enough protein and/or using a protein powder, branched-chain amino acids are completely redundant. You're already getting them. Save the money.

Quick Tips: Supplement Stack for Tradies

The simple, evidence-backed, cost-effective stack:

• Creatine monohydrate — 5g/day, every day
• Protein powder — only if your food intake has gaps
• Vitamin D3 — 1,000–2,000 IU daily (year-round in the UK, Oct–Mar minimum)
• Magnesium glycinate — 300–400mg before bed
• Omega-3 fish oil — if you're not eating oily fish regularly

Total cost: roughly £30–40 per month. That's it. Anyone trying to sell you more than that without knowing your specific bloodwork and diet is likely taking you for a ride.