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The Bodybuilding Dietitians

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Jack Radford-Smith
April 25, 2026

The Health Risks of Visceral Fat and the Evidence on How to Lower It

Jack Radford-Smith
April 25, 2026

Visceral fat surrounds your internal organs and influences insulin sensitivity, lipid metabolism, and cardiovascular risk in ways that subcutaneous fat does not. A dietitian explains what drives its accumulation and what the evidence shows about reducing it.

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Jack Radford-Smith
April 25, 2026

Eight Practical Ways to Make Fat Loss Easier and More Sustainable

Jack Radford-Smith
April 25, 2026

Fat loss requires a calorie deficit, but the variables that determine whether that deficit is sustainable go well beyond food intake alone. Eight practical strategies covering daily movement, food selection, sleep, meal timing, and life context.

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Jack Radford-Smith
April 20, 2026

Daily Macro Targets for Muscle Gain, Fat Loss, and Training Performance

Jack Radford-Smith
April 20, 2026

A practical breakdown of evidence-based protein, carbohydrate, fat, and fibre targets, and how to adjust each one sensibly depending on whether you are building, dieting, or maintaining.

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Jack Radford-Smith
April 18, 2026

Nine Nutrition Realities That Change How You Approach Training and Diet

Jack Radford-Smith
April 18, 2026

Nine evidence-based nutrition principles that cut through the noise of fitness industry messaging: from fasted training and superfood marketing to realistic muscle gain timelines and the supplements that actually matter.

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Jack Radford-Smith
April 13, 2026

Four Supplements Worth Taking: A Dietitian's Evidence-Based Guide

Jack Radford-Smith
April 13, 2026

The four supplements actually worth taking for lifters and active individuals: omega-3, vitamin D3, creatine monohydrate, and magnesium glycinate. A dietitian explains the evidence, dosing, form selection, and timing for each one.

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Jack Radford-Smith
April 10, 2026

Is Bodybuilding Unhealthy? The Risks, Benefits, and What Determines the Outcome

Jack Radford-Smith
April 10, 2026

Is bodybuilding unhealthy? A dietitian's honest, evidence-based assessment of the risks and benefits of physique sport, covering predisposing factors, the health spectrum, common misconceptions, and practical steps to minimise harm.

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Jack Radford-Smith
April 8, 2026

The Five Most Common Nutrient Deficiencies for Lifters and How to Fix Them

Jack Radford-Smith
April 8, 2026

The five nutrient deficiencies most commonly seen in active individuals: iron, vitamin D, magnesium, calcium, and iodine. A dietitian explains why each one matters, who is most at risk, the best food sources, and when supplementation is worth considering.

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Jack Radford-Smith
April 8, 2026

Fibre Efficiency Ranked: Which Foods Deliver the Most Fibre Per Calorie

Jack Radford-Smith
April 8, 2026

A visual ranking of 20 common whole foods by fibre efficiency, showing which foods deliver the most fibre per calorie and how to use this information to build a higher-fibre diet without overshooting your calorie budget.

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Jack Radford-Smith
April 4, 2026

Vitamin D Explained: Benefits, Dosing, and What the Evidence Actually Shows

Jack Radford-Smith
April 4, 2026

A dietitian's evidence-stratified guide to vitamin D covering its role in hormones, immunity, muscle function, and bone health, along with practical guidance on dosing, timing, and supplementation for lifters and physique-focused individuals.

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Jack Radford-Smith
April 4, 2026

Protein Sources Ranked by Calories: Which Foods Are Actually Efficient?

Jack Radford-Smith
April 4, 2026

A practical comparison of how much protein common foods and marketed "high-protein" products deliver relative to their calorie cost. A dietitian ranks whole food sources, examines popular high-protein snacks, and explains how to balance efficiency with overall dietary quality.

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Why You Stay Hungry on a Diet: Ten Factors Beyond Calorie Intake

Persistent hunger during a fat loss phase can reflect ten distinct drivers across four categories. A dietitian's framework identifies the nutritional, environmental, mechanical, adaptive, and hormonal causes of hunger, with the warning signs for each and how to address the most relevant one.

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Pre-Workout Nutrition: What to Eat, How Much, and When

Pre-workout nutrition depends on session type, duration, intensity, and how much time is available before training. A dietitian covers carbohydrate targets, timing windows, and food selection from whole foods to refined carbs for training performance and muscle retention.

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The Foundations That Determine Whether a Fat Loss Phase Will Succeed

The conditions going into a fat loss phase determine how it unfolds and whether results hold afterward. A dietitian explains the four foundational variables, covering training consistency, life context, dietary history, and relationship with food, that need to be assessed before beginning a calorie deficit.

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Protein Sources Ranked by Cost: What 30 Grams of Protein Actually Costs

The cost of obtaining 30 grams of protein varies roughly sevenfold across common sources. A dietitian compares ten foods by cost per 30 grams of protein with calorie data for each, based on average retail prices.

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The Bodybuilding Phases That Actually Determine Stage Outcomes

The muscle that determines stage outcomes is built during improvement season, which requires 12 to 24 or more months to work effectively. A dietitian explains the multi-phasic structure of bodybuilding and why most competitors do not prioritise the phases that matter most.

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How to Lose Fat While Keeping Muscle: A Four-Skill Framework

How to lose fat while keeping muscle: a framework covering energy balance, protein intake, dietary adherence, and progress tracking, with practical targets for each skill.

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How Accurate Is Macro Tracking? The Sources of Error You Should Know About

Macro tracking is an approximation. Food labels can legally be up to 20 percent off, whole foods vary with ripeness and source, and cooking changes macronutrient concentration per gram. A dietitian explains how these errors stack up and how to calibrate tracking precision to the goal.

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Why Progress Stalls: A Framework for Identifying Training and Nutrition Plateaus

A stalled scale or a stuck lift is a symptom, not a diagnosis. This framework identifies nine plateau causes across four categories, with the signs for each and the appropriate response, so the intervention matches the actual mechanism driving the stall.

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Contest Prep: Five Factors That Determine Peak Conditioning on Stage

Most of what decides how a competitor looks on stage is determined before the deficit starts. Starting body composition, underlying muscle mass, rate of loss, timeline, and psychological readiness are the five variables that shape a bodybuilding prep from the inside out.

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Nutrition Priorities: What to Focus On First for Body Composition and Performance

Nutrition decisions are often approached in the wrong order. A dietitian maps six common pairings where effort is frequently directed at the lower-return variable before the higher-return one is consistently managed, and explains the right priority order for body composition and performance.

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Which Foods Give You the Most Fibre and Volume Per Calorie?

A scatterplot of over 50 foods mapping grams of food and grams of fibre per 100 calories, showing which options best support satiety and fibre targets simultaneously.

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Why Every Popular Diet Works Through the Same Mechanism

Every popular diet, from keto to intermittent fasting to paleo, produces weight loss through the same mechanism: a calorie deficit. A dietitian explains the common mechanism, why adherence determines outcomes more than diet type, and what this means for choosing a dietary approach.

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Diet Fatigue: Why Dieting Gets Harder Over Time and How to Manage It

Diet fatigue is a predictable physiological and psychological response to sustained energy restriction, not a sign of inadequate motivation. A dietitian explains the mechanisms behind it, how to recognise the signals that warrant action, and the strategies that help a fat loss phase keep progressing.

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