The Complete Supplement Stack for Cutting

If you've read through the individual supplement guides, this is where it all comes together. A sensible cutting stack doesn't need to be complicated or expensive. This guide outlines a tiered approach depending on budget and priorities.

The Core Stack (Non-Negotiable Foundations)

These three are the supplements with the strongest evidence and the best return on investment during a cut.

1. Protein Powder

Why: Getting adequate protein (1.6–2.2g/kg/day) is the single biggest dietary factor in muscle retention during a deficit. Whole food should be the priority, but a quality whey or plant protein makes hitting targets significantly easier.

What to buy: MyProtein Impact Whey or Bulk Pure Whey for value. PhD Diet Whey or Bulk Pure Whey Isolate for fewer calories per serving.

Cost: ~£25–35 per month (1–1.5kg bag, used 1–2 times daily).

2. Creatine Monohydrate

Why: Maintains training performance on reduced calories. Helps preserve lean mass during the cut. One of the most-studied supplements with a consistent positive evidence base.

What to buy: Bulk Creatine Monohydrate (unflavoured). Cheapest per gram, equivalent to any branded product.

Dose: 3–5g daily, any time.

Cost: ~£5–8 per month.

3. Caffeine

Why: Improves training performance, increases fat oxidation, suppresses appetite mildly. Addresses the energy dip common during a cut.

What to buy: caffeine tablets (200mg) are the most cost-effective option. Coffee achieves the same thing if you prefer it.

Dose: 100–200mg, 30–45 minutes pre-training. Avoid within 6–8 hours of sleep.

Cost: Under £5 per month for tablets.

Total core stack cost: £35–48/month.

The Health Support Layer

These aren't about performance directly — they support the health foundations that make everything else work better.

Vitamin D3 + K2

Why: Deficiency is extremely common in the UK, particularly in autumn and winter. Low D3 is associated with reduced testosterone, poor mood, and sluggish recovery. K2 helps direct calcium to the right places (bones, not arteries).

Dose: 2,000–4,000 IU D3 daily, with 100–200mcg K2. Take with a meal containing fat.

Cost: ~£8–12/month.

Omega-3 Fish Oil

Why: Anti-inflammatory, supports joint health, some evidence for muscle protein synthesis support during a deficit.

Dose: 2–3g of combined EPA+DHA daily. This usually means 3–6 capsules depending on concentration.

Cost: ~£8–12/month.

Magnesium Glycinate

Why: Supports sleep quality, reduces muscle cramping, commonly deficient in active people. Sleep is critical for fat loss and recovery.

Dose: 300–400mg before bed.

Cost: ~£8–12/month.

Total health layer cost: ~£24–36/month.

Optional Add-Ons

These have marginal but real evidence. Add them if budget allows, but don't prioritise them over the core stack.

Zinc

Supports testosterone and immune function. Worth adding if you don't eat red meat regularly. ~£4/month.

Vitamin C

Antioxidant support. Cheap. Worth taking if fruit intake is low on a strict cut. ~£3/month.

Electrolytes

Relevant if you're training intensely, sweating heavily, or eating low-carb. Products like Precision Hydration sachets are excellent for heavy training days. ~£10–15/month.

What to Skip

• BCAAs: Redundant with adequate protein intake. Save the money.
• Fat burners: Just buy the caffeine component separately.
• Testosterone boosters: Zero evidence in the mainstream market.
• Greens powders at premium prices: Buy real vegetables and a basic multivitamin instead.

Sample Monthly Budget

Key Takeaways

• Core stack: protein powder, creatine monohydrate, caffeine — the three with the best evidence
• Health layer: vitamin D3/K2, omega-3, magnesium — support recovery and wellbeing
• Skip BCAAs, fat burner, and most other marketed cutting supplements
• Total evidence-backed stack costs £38–89/month depending on how complete you go
• Nail diet and training consistency before worrying about optimising your stack