Fitness Supplements Guide 2026: Protein, Creatine and What You Need

Written by Barry Lees, Founder of The Health Improvers. Last reviewed 3 August 2026.

Short answer: most beginners do not need a large supplement stack. Establish training, food and sleep first. A protein powder can help when food does not conveniently meet your protein needs, and creatine is relevant to repeated short, high-intensity exercise when the conditions of its authorised claim are met.

Commercial disclosure: We sell protein and creatine products linked in this guide. We have removed the previous “beginner” and “advanced” stacks because buying more products is not automatically better.

Step 1: define the goal before buying anything

“Get fit” is difficult to measure. Choose an outcome you can track, such as completing two resistance sessions each week, increasing a particular lift gradually, walking a consistent weekly distance or meeting a food-based protein target. Supplements cannot rescue a plan that has no repeatable behaviour.

Step 2: decide whether protein powder solves a real problem

Protein contributes to a growth in muscle mass, the maintenance of muscle mass and the maintenance of normal bones when the food qualifies for those authorised claims. A powder is useful when it makes an adequate intake easier; it is not mandatory if ordinary meals already cover your needs.

Our current range includes whey and vegan powders delivering 13.6g to 23.2g protein per serving. Compare the actual serving, allergens, added ingredients and cost—not the size of the tub or a “superfood” headline. Our complete protein-powder guide shows the numbers.

For direct options, compare our Vanilla Whey Protein, Chocolate Whey Protein and highest-protein vegan option, Pea Protein.

Step 3: understand exactly what creatine may claim

The authorised GB wording is specific: creatine increases physical performance in successive bursts of short-term, high-intensity exercise. The beneficial effect is obtained with a daily intake of 3g creatine, and the claim is aimed at adults performing high-intensity exercise.

Our Creatine Monohydrate provides 5g creatine monohydrate, of which 4.4g is creatine, per serving. It therefore exceeds the 3g creatine condition. It should not be advertised as a general energy, recovery, weight-loss or cognitive supplement. A proposed GB cognitive claim was not authorised.

Do you need protein immediately after a workout?

A post-training shake is convenient, but a universal 30-minute deadline is too rigid. Research suggests protein supplementation can add modest benefits during resistance training, while the total daily pattern remains important. Use the timing that helps you eat consistently and comfortably.

Do you need pre-workout and recovery products?

Not by default. Check what a product actually contains and whether its claims are authorised for those ingredients at the declared dose. Our former Post-Workout Recovery Drink is archived, so old links and recommendations to that product have been removed from this guide.

A simpler first 8 weeks

1. Weeks 1–2: choose a manageable training schedule and record a baseline.
2. Weeks 3–4: review meals and identify any genuine protein shortfall or convenience problem.
3. Weeks 5–6: if repeated high-intensity training is central to the plan, decide whether creatine fits and follow the product directions.
4. Weeks 7–8: review consistency, training progression, comfort and cost before buying additional products.

Common buying mistakes

• Buying a stack before establishing a routine.
• Treating protein powder as inherently superior to food.
• Assuming “5g creatine monohydrate” means 5g actual creatine; check both figures.
• Using “cognitive support” as a sales reason for creatine in Great Britain.
• Ignoring allergens, caffeine and serving count.
• Following an influencer’s dose instead of the product directions or professional advice.

Sources

1. Great Britain Nutrition and Health Claims Register
2. Authorised creatine performance claim and conditions
3. UKNHCC opinion on the non-authorised creatine cognitive claim
4. Protein supplementation during resistance training: systematic review and meta-analysis

Next, read how to take creatine, whey versus plant protein, or how to build strength with protein and creatine.

Always read the label. Food supplements are not a substitute for a varied and balanced diet and a healthy lifestyle. Ask an appropriate healthcare professional for individual advice if you have a medical condition, take medication, are pregnant or breastfeeding, or have been given a prescribed diet.