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The Bodybuilding Dietitians

Home
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Weekly Training And Nutrition Coaching
Bodybuilding Coaching
Dietetic Consultations
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Jack Radford-Smith
May 18, 2026

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

Jack Radford-Smith
May 18, 2026

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.

Comment
Jack Radford-Smith
May 15, 2026

Why Every Popular Diet Works Through the Same Mechanism

Jack Radford-Smith
May 15, 2026

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.

Comment
Jack Radford-Smith
May 13, 2026

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

Jack Radford-Smith
May 13, 2026

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.

Comment
Jack Radford-Smith
May 12, 2026

Food Volume vs Protein Per 100 Calories: Which Foods Do Both Best?

Jack Radford-Smith
May 12, 2026

A scatterplot of over 40 foods mapping grams of food and grams of protein per 100 calories, showing which options best support hunger management and protein targets simultaneously.

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Jack Radford-Smith
May 10, 2026

Energy Metabolism Explained: How Macronutrients Are Processed and Stored

Jack Radford-Smith
May 10, 2026

The body processes protein, carbohydrates, and fat simultaneously, with the relative contribution of each shifting based on energy availability and training demands. A dietitian explains the metabolic pathways of each macronutrient and why no single one causes fat gain in isolation.

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Jack Radford-Smith
May 6, 2026

Natural and Artificial Sweeteners Compared: What the Evidence Shows

Jack Radford-Smith
May 6, 2026

Sweeteners vary considerably in caloric content, glycaemic impact, digestive tolerance, and the quality of available safety evidence. A dietitian breaks down natural sweeteners, sugar alcohols, stevia, monk fruit, aspartame, sucralose, and saccharin across all four categories.

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Jack Radford-Smith
May 4, 2026

Body Recomposition Guide | How to Build Muscle and Lose Fat at the Same Time

Jack Radford-Smith
May 4, 2026

Body recomposition, building muscle and losing fat simultaneously, is more achievable than most people realise and slower than most content suggests. A dietitian explains who it works for, how to structure it, and how to track progress when the scale is barely moving.

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Jack Radford-Smith
May 2, 2026

The Best High Fibre Foods: Ranked by Fibre Content and Calories

Jack Radford-Smith
May 2, 2026

Fifteen whole foods ranked by fibre and calorie content per 100 grams, with data from the Australian Food Composition Database and practical guidance on hitting daily fibre targets across different dietary goals.

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Jack Radford-Smith
April 29, 2026

How Hard Should You Train? Using RPE and RIR to Guide Your Sets

Jack Radford-Smith
April 29, 2026

RPE and reps in reserve are practical tools for quantifying how close to failure a set is, giving coaches and athletes a shared language for prescribing and monitoring training intensity. A guide to the scale, where most sets should land, and why accuracy improves with experience.

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Jack Radford-Smith
April 27, 2026

The Nutritional Consequences of Excluding Food Groups From Your Diet

Jack Radford-Smith
April 27, 2026

Excluding a food group removes a cluster of nutrients that are often difficult to replace. A dietitian examines the evidence on dairy, grains, fruit, lean animal protein, and vegetables, and explains what each exclusion actually costs nutritionally.

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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.

Read more →
How Diets Work.jpg
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.

Read more →
1.jpg
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.

Read more →
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