Fit Nutrition library

Nutrition Guides

Clear, practical nutrition guides that turn everyday food questions into simple decisions — how much protein you actually need, what to eat before a workout, how to read a label, and which choices are worth your attention. Every guide is written in plain language and backed by trusted sources, so you can act on it the same day.

143 guides

All guides

The Truth About Carbs: What Federal Sources Actually SayCarbohydrates

The Truth About Carbs: What Federal Sources Actually Say

Carbohydrates are one of the three primary macronutrients essential for human health, alongside proteins and fats. They are organic compounds made up..

6 min read
Healthy Snack Ideas: Nutrient-Dense Options by CategoryFoods & Nutrients

Healthy Snack Ideas: Nutrient-Dense Options by Category

Snack ideas grouped by what they are built from - fruit and nut, vegetable, dairy, egg, grain and seed - with what each one actually brings.

8 min read
Best Foods for Fitness: What the Position Stands Actually SayFoods & Nutrients

Best Foods for Fitness: What the Position Stands Actually Say

Protein, carb, fat and fluid targets from the ISSN and ACSM position stands — plus the foods that meet them, and six popular claims the sources do not support.

13 min read
How to Identify and Manage Food Sensitivities Without Elimination DietsSpecial Diets

How to Identify and Manage Food Sensitivities Without Elimination Diets

Food sensitivity testing methods explained simply. Learn which tests work, why IgG testing isn't reliable, and practical alternatives to elimination diets. Find out why.

9 min read
Fuelling Different Types of Training: Endurance, Lifting and IntervalsPre & Post-Workout

Fuelling Different Types of Training: Endurance, Lifting and Intervals

Carbohydrate by training load, why carbs during lifting mostly don't help, what intervals need, protein by modality and caffeine doses that work across all three.

8 min read
Gut Health and Nutrition: What Diet Actually ChangesFoods & Nutrients

Gut Health and Nutrition: What Diet Actually Changes

Gut health and nutrition without the hype: the 28 g fibre Daily Value, why fermented food isn't a probiotic, what NIH says probiotics do, and what labels may legally claim.

10 min read
Plant vs Animal Protein for Muscle: What the Trials ShowProtein

Plant vs Animal Protein for Muscle: What the Trials Show

Plant vs animal protein for muscle: what three meta-analyses found, why soy behaves differently from other plant proteins, and what happens when total protein is matched.

7 min read
Recovery Nutrition: What to Eat After TrainingPre & Post-Workout

Recovery Nutrition: What to Eat After Training

Post-workout nutrition by the numbers: carbohydrate at 1.0–1.2 g/kg/h when sessions are close, protein at 0.25–0.3 g/kg, and rehydration at 125–150% of what you lost.

7 min read
Super Healthy Foods: What ‘Healthy’ Legally Means on a LabelSuperfoods

Super Healthy Foods: What ‘Healthy’ Legally Means on a Label

Super healthy foods deliver more nutrients per calorie. Learn which 15 foods to eat weekly, how to prepare them, and where to buy them affordably.

7 min read
Fuel Your Brain with Nutritious FoodsMindful Eating

Fuel Your Brain with Nutritious Foods

As I delve into the fascinating world of nutrition, I find myself increasingly captivated by the profound impact that certain foods can have on brain..

10 min read
Foods That Give You Energy: Natural Energy Boosters That LastCarbohydrates

Foods That Give You Energy: Natural Energy Boosters That Last

Natural energy boosting foods that stabilize blood sugar and provide lasting fuel without crashes. Learn which foods sustain energy for hours.

8 min read
A 7-Day Anti-Inflammatory Meal Plan Built on Sourced NumbersMeal Planning

A 7-Day Anti-Inflammatory Meal Plan Built on Sourced Numbers

A week of meals using DASH serving sizes, the EPA/FDA seafood figure and FDA olive oil claim — plus an honest account of what a seven-day plan can and cannot do.

10 min read
Making Family Meal Time a RealityMeal Planning

Making Family Meal Time a Reality

Discover practical strategies to overcome busy schedules and make family meals a reality. Learn tips on planning ahead, engaging children in meal prep, and dining out healthily to strengthen family bonds.

4 min read
Endurance Fuelling: Carbs Per Hour, Fluid and SodiumEndurance

Endurance Fuelling: Carbs Per Hour, Fluid and Sodium

Nutrition plays a pivotal role in the performance and overall health of endurance athletes. Unlike other sports that may rely more on short bursts of..

6 min read
Key Nutrition Strategies for Muscle DevelopmentMuscle & Performance

Key Nutrition Strategies for Muscle Development

Nutrition plays a pivotal role in muscle development, serving as the foundation upon which strength and performance are built. The body requires a..

9 min read
Sports Nutrition Myths: What the Position Stands Actually SayMuscle & Performance

Sports Nutrition Myths: What the Position Stands Actually Say

Sports nutrition myths against the evidence: the anabolic window, the 30 g protein ceiling, creatine and kidneys, BCAAs, fasted cardio and whether carbs make you fat.

10 min read
Mindful Eating Diary: Cultivating Awareness and Connection with FoodMindful Eating

Mindful Eating Diary: Cultivating Awareness and Connection with Food

In a world that often prioritizes speed and convenience, I find myself reflecting on the concept of mindful eating. This practice encourages me to..

9 min read
Building Muscle on a Plant-Based Diet: The Practical GuideSpecial Diets

Building Muscle on a Plant-Based Diet: The Practical Guide

How much protein to aim for on a plant-based diet, how to reach it from real food using USDA portions, which plant proteins to lean on, and the mistakes that cost you.

7 min read