At The Cut, we don’t just train hard—we recover smart. That’s where targeted supplementation comes in.
If you’re investing time and effort in the gym, it’s worth supporting your performance and recovery with the proper nutritional tools.
Here’s a no-nonsense breakdown of the essential supplements our top-rated London personal trainers recommend, and why they actually matter.
Creatine
Power, Strength, and Growth
What it is
Creatine is a naturally occurring compound made from amino acids. It plays a major role in short, explosive movements—think sprinting, lifting heavy, or high-intensity intervals.
Why it matters
Creatine helps regenerate ATP—the primary energy source your muscles use during intense efforts. More creatine means more energy, more strength, and better performance.
The Cut Recommends
Creatine Monohydrate. It’s the most researched, most effective, and most affordable form. Don’t get distracted by fancy alternatives—they don’t outperform the original.
Bonus
Creatine can also support muscle growth through cell volumising and possibly increase protein synthesis over time.
Magnesium
The Recovery Mineral
Why it matters
Magnesium supports muscle relaxation, promotes quality sleep, regulates stress, and enhances energy production. It’s also key for healthy bones, nerve function, and blood sugar regulation.
Who needs it
Pretty much everyone. Intense training, stress, poor sleep, and modern diets can all contribute to depleted magnesium levels.
The Cut Recommends
- Magnesium Glycinate or Bi-Glycinate: Gentle on the stomach and great for calming the nervous system—perfect for winding down.
- Magnesium L-Threonate: The go-to for brain support and deeper sleep. It crosses the blood-brain barrier for a nootropic effect.
Vitamin D3 & K2
Stronger Bones, Better Immunity
Why it matters
Vitamin D is essential for calcium absorption, immune health, and muscle function. K2 works with D3 to direct calcium to the bones where it belongs—instead of your arteries.
The problem
Up to 80% of the UK population is deficient in vitamin D—especially during the winter months and in those with darker skin tones.
The Cut Recommends
Supplementing with Vitamin D3 + K2. Together, they support bone health, reduce inflammation, and improve muscle strength.
Fish Oil (Omega-3s)
Fuel for the Brain and Body
What it is
Fish oil is rich in EPA and DHA—two omega-3 fatty acids critical for heart, brain, and joint health.
Why it matters
Most people consume far too many omega-6 fatty acids (which can be inflammatory) and not enough omega-3 fatty acids. This imbalance affects everything from mood to metabolism.
Benefits
- Supports brain function and mood
- Improves cardiovascular health
- Enhances cell membrane function (important for insulin sensitivity and recovery)
The Cut Recommends
A high-quality fish oil supplement with potent EPA/DHA content. It’s not just for health—there’s performance upside too.
Why We Recommend These Supplements
At The Cut, we don’t push gimmicks. These four supplements are backed by research, used by professionals, and tested in real-world performance settings. They won’t replace hard work or proper nutrition—but they will help you train harder, recover faster, and feel better doing it.
If you’re unsure where to start, speak to your coach. We’ll recommend what makes sense for your training, recovery, and lifestyle.
Steve Wise
Founder & Head Coach at The Cut Gym
@stevecutgym
