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The Bodybuilding Dietitians

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Jack Radford-Smith
September 26, 2025

Sugar Alcohols and Digestion: Pros, Cons, and Evidence-Based Guidance

Jack Radford-Smith
September 26, 2025

Sugar alcohols are marketed as a low-calorie swap for sugar, but do they really help with fat loss and performance, or just cause bloating and hidden calories? Discover the evidence, pros, and cons of sugar alcohols in this science-based guide.

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Jack Radford-Smith
September 24, 2025

8 Hard Truths About Bodybuilding Prep You Need to Hear

Jack Radford-Smith
September 24, 2025

Discover the hard truths of bodybuilding, from delayed gratification to evolving standards. Learn what it really takes to succeed in competitive bodybuilding and how to prepare smarter with evidence-based coaching.

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Jack Radford-Smith
September 22, 2025

How to Improve Gut Health Naturally (Without Supplements)

Jack Radford-Smith
September 22, 2025

Discover what really drives gut health. Learn why fibre, whole foods, and fermented foods beat powders and “gut resets”, and the science-backed steps you can take to build a healthy gut microbiome.

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Jack Radford-Smith
September 22, 2025

Bodybuilding Prep Mistakes: Why Comparison Hurts Your Performance

Jack Radford-Smith
September 22, 2025

Copying another athlete’s bodybuilding prep won’t win you a trophy. Learn why comparison is harmful, what truly determines success on stage, and how to stay focused on your individualised prep plan.

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Jack Radford-Smith
September 17, 2025

Are You Deficient in Iron or Calcium? Here’s What You Need to Know

Jack Radford-Smith
September 17, 2025

Most adults miss their daily iron and calcium targets, risking fatigue, poor recovery, and long-term bone health issues. Learn why these nutrients matter, how much you need, and how to actually meet requirements through food and supplementation.

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Jack Radford-Smith
September 17, 2025

The Science of Carbohydrate Digestion and Absorption

Jack Radford-Smith
September 17, 2025

Carb digestion doesn’t happen in one step, it’s a complex process involving enzymes, stomach acid, and your gut microbiome. Learn how your body digests and absorbs carbohydrates, why fibre is vital, and how carbs support both energy and long-term health.

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Jack Radford-Smith
September 15, 2025

The Best Foods and Nutrients to Prevent Hair Loss

Jack Radford-Smith
September 15, 2025

Hair loss is often genetic, but nutrition and lifestyle can still support hair health. Learn the best foods, nutrients, and supplements for hair growth, plus evidence-based strategies for sleep, stress, and recovery.

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Jack Radford-Smith
September 13, 2025

Bodybuilding Success: Why Your Placing Doesn’t Define You

Jack Radford-Smith
September 13, 2025

Placing in bodybuilding shows doesn’t define your success. True progress comes from discipline, effort, and personal growth. Learn why internal victories matter more than trophies, and how to redefine success in a sport where only a few walk away with medals.

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Jack Radford-Smith
September 10, 2025

4 Food Combinations That Boost Nutrient Absorption

Jack Radford-Smith
September 10, 2025

Discover the science of food synergy. Learn how pairing foods like vitamin C with iron, olive oil with tomatoes, and rice with beans can significantly boost nutrient absorption, performance, and health. Simple, evidence-based food hacks to optimise your diet.

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Jack Radford-Smith
September 9, 2025

Cutting vs Bulking: Smart Food Swaps to Maximise Results

Jack Radford-Smith
September 9, 2025

Discover how to adjust meals for cutting or bulking without compromising nutrition quality. Learn practical food swaps that maintain protein, fibre, and micronutrients while tailoring calorie density to your body composition and performance goals.

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Gut Health for Lifters: Why Dietary Diversity Matters for Digestion

A practical guide to gut health for lifters and physique-focused individuals, covering why dietary diversity matters for the microbiome, how fibre and fermented foods support digestion, and what daily habits make the biggest difference.

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What Bodybuilders Hear During Prep and Why It Matters

A practical guide to the well-intentioned comments bodybuilding competitors commonly hear during contest prep, why they land the way they do, and how athletes and the people around them can navigate these conversations more effectively.

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Dietary Fat Explained: How Much You Need and Which Sources Matter

An evidence-based guide to dietary fat covering how much to eat, which sources to prioritise, and how to distribute fat across your meals for health, hormones, and body composition.

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Protein vs Calories vs Cost: Comparing the Most Efficient Protein Sources

Discover how common protein foods compare in calories and price per 30g of protein using this visual breakdown of animal and plant protein sources.

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9 Research-Backed Foods to Improve Diet Quality

Discover nine research-backed foods that can improve gut health, cholesterol, blood sugar control, and overall diet quality through consistent inclusion.

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Off-Season Bodybuilding Guide: Training, Nutrition and Mini-Cuts

A comprehensive guide to maximising muscle growth between contest preps through structured training, nutrition and long-term planning.

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Scale Weight vs True Progress: Understanding Weekly Averages

Learn why daily weight fluctuations are normal and how to interpret weekly averages for more accurate body composition tracking.

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Optimising Carbohydrates for Training, Recovery and Body Composition

Learn how to plan carbohydrate intake based on training demands, fibre quality and daily distribution to support performance and body composition.

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Protein vs Calorie Density: Which Foods Deliver the Most Protein Per Calorie?

Discover which foods provide the most protein relative to their calorie content. A practical guide to choosing high-protein, calorie-efficient foods.

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Is Your Metabolism Really Broken? Understanding Metabolic Adaptation

Learn how metabolism adapts to energy intake and expenditure, and why fat loss plateaus are usually the result of physiological adjustment rather than permanent damage.

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Bodybuilding Off-Season Plan: Gaining Phases, Mini-Cuts and Pre-Prep Positioning

Learn how to structure your bodybuilding off-season to maximise muscle gain and minimise unnecessary fat gain before contest prep.

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Best Foods for Iron, Zinc, Magnesium and Calcium

Discover which foods provide the most iron, magnesium, zinc and calcium relative to their calorie content. A practical guide to nutrient density and smarter food selection.

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Best Foods to Keep You Full in a Calorie Deficit

Learn how different foods influence hunger during fat loss. Discover how protein, fibre and energy density affect satiety and dietary adherence.

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