Pre Workout Supplements

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Frequently Asked Questions (FAQ)

We’ve gathered the essentials in one place so you can find what you need fast and choose the right products with confidence. If you still need help, our team is always here for you.

What is pre-workout and what does it do?

Pre-workout supplements are designed to boost energy, focus, strength and endurance before training. They combine ingredients such as caffeine, beta-alanine and nitric oxide boosters to help you train harder and longer.


Are pre-workouts safe, and what are the risks?

When used as directed by healthy adults, pre-workouts are generally safe. Risks include overstimulation (jitteriness, raised heart rate), disrupted sleep if taken too late, and possible interactions with other caffeine sources. Those with medical conditions, pregnant or breastfeeding should consult a healthcare professional before taking pre-workouts.


How much caffeine is safe in a pre-workout?

UK health guidelines suggest up to 400 mg caffeine per day for healthy adults. Pre-workouts often contain between 100-350 mg per serving, so tally up all your daily sources (coffee, tea, energy drinks) to avoid excess.


What ingredients should I look for in a pre-workout (and avoid)?

Look for well-researched ingredients: caffeine, beta-alanine, citrulline or arginine for pumps. Avoid unknown proprietary blends, excessive stimulants, and unsupported “exotic” claims. Quality and transparency matter.


Will pre-workout help with endurance or stamina?

Yes. Ingredients like beta-alanine help buffer lactic acid, delaying fatigue, while caffeine supports stamina. This makes Blood & Guts suitable for both strength training and endurance sessions.


How do I take pre-workout?

Pre-workouts usually come in powder, liquid or ready-to-drink formats. For powders, mix the recommended serving with water in a shaker and consume before your workout. Always follow the label instructions for dosage, and start with a smaller serving if you’re new to the product.


Can I take pre-workout every day?

It depends on your tolerance and the ingredients. Most pre-workouts contain caffeine and other stimulants, so daily use is generally safe if you stay within the recommended serving and monitor total daily caffeine intake. Non-stimulant pre-workouts can be used more regularly. For long-term use, it’s advisable to cycle or take occasional stimulant-free days.


Can I mix pre-workout with other supplements?

Yes. Pre-workouts can be combined with protein shakes, BCAAs or other supplements, depending on your training goals. Avoid combining multiple stimulant-heavy products to prevent excessive caffeine intake.