Evidence-based nutrition

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Every claim verified against peer-reviewed research. Every guide narrated so you can listen while you cook. Every meal plan built for your body.

134 Studies
154 Claims
23 Guides
728 Shorts
1,000+ Recipes
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Shakshuka with Ground Beef & Eggplant
dinner
Shakshuka with Ground Beef & Eggplant
20 min · 394 kcal
Pumpkin Skillet with Ground Beef & Egg
dinner
Pumpkin Skillet with Ground Beef & Egg
15 min · 332 kcal
Zucchini, Mango & Spicy Tofu Salad
lunch
Zucchini, Mango & Spicy Tofu Salad
15 min · 653 kcal
CHRONONUTRITION & SHIFT WORK
Night shift, weight gain, and what actually works: the complete evidence
3 studies · 1 RCTs
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MINDSET & ADHERENCE
Why Diets Fail (And Why It Was Never About the Diet)
7 studies · 3 RCTs
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COACHING, STRUCTURE & SUPPORT
Personal Trainer, Meal Box, Group or App Coach: Each Does a Different Job
17 studies · 2 RCTs
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FAT LOSS
How fat loss actually works
6 studies
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SUPPLEMENTS
The Supplement Sort: What Eight Research Teams Found When They Tested Everything on the Shelf
8 studies
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CALORIES & METABOLISM
Calories and Metabolism: Your Engine Is Fine, Your Gauge Is Broken
8 studies
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TRAINING
The complete evidence guide to exercise and body composition
8 studies
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HYDRATION & ELECTROLYTES
Everything We Know About Hydration
5 studies
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PROTEIN
Protein Intake: What 9 Studies Found (and What the Internet Added)
9 studies · 4 RCTs
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PLANT-BASED FITNESS
Plant Protein Builds the Same Muscle — and One Area Does Better
6 studies · 1 RCTs
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MEAL TIMING
When You Eat vs. What You Eat: 5 Trials, 774 People
7 studies · 4 RCTs
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SATIETY & APPETITE SCIENCE
Hunger Is Simpler Than You've Been Told
7 studies · 1 RCTs
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ALCOHOL & BODY COMPOSITION
What is alcohol actually doing to a body that trains?
4 studies · 1 RCTs
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CARDIO & CONDITIONING
Three meta-analyses asked different cardio questions. Same answer.
7 studies
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EXERCISE SELECTION
Exercise selection for muscle growth: 6 debates, 1 real variable
6 studies · 2 RCTs
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DIETARY FAT
How Much Fat Per Day? Three Research Programs, One Answer Nobody Assembled
5 studies · 3 RCTs
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MICRONUTRIENTS & MINERALS
Six Mineral Supplements Tested. One Rule Predicted Every Result.
6 studies
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FOOD SCIENCE & BIOAVAILABILITY
What your body actually absorbs from your food
7 studies · 4 RCTs
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WOMEN’S FITNESS & HORMONES
Women, Hormones, and Training: What 78 Studies, 3 Life Stages, and Nearly 3,000 Women Actually Found
6 studies
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AGING & MUSCLE PRESERVATION
What 300+ trials found about your muscles after 40
10 studies
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SLEEP & RECOVERY
Sleep and Muscle Growth: What 15 Studies Actually Found
8 studies · 4 RCTs
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RECOVERY
Recovery: What Works, What Doesn't, and What's Quietly Costing You Muscle
7 studies · 1 RCTs
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CARBS
Carbs and body composition: everything the evidence actually says
10 studies · 4 RCTs
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Nutrition

Keeping people regular was the job fiber was famous for. It belonged to bran cereal and a grandparent's advice at breakfast, a virtue so plain that nobody ever bragged about it. Lately it has been promoted. Metabolism-boosting food lists and wellness blogs now credit fiber with making the body burn extra calories just to break it down, a free bonus for anyone already piling on beans and whole grains to stay full. You would want to know whether fiber increases metabolism before counting on it.

Fiber Barely Touches Your Metabolism. Its Calories Go Somewhere Else.
4 min read 868 words
Training

Payment for the gym goes out on its usual day, and the club still lists your name among its active members. You can't say when the last session was, only that it came before a run of late nights at work, and that nothing about it felt like a last one.

Why People Stop Going to the Gym, From the People Who Stopped
3 min read 731 words
Training

Halfway through a set of one-arm overhead extensions, the dumbbell swaps hands, and the second arm gets the identical weight the first one got, just like last week. Somewhere in the swap an odd thought drifts in, of letting this arm keep today's dumbbell for good while the other moves up a size only once it can finish the top number of reps in its range.

How Often Should the Weight Go Up? Two Arms, Two Rules
4 min read 930 words
BUILT TO PROVE OURSELVES WRONG
5 verification gates. 3 pipelines. 28+ kill switches.
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FitChef is a digital publisher and evidence synthesis platform. We aggregate and structure publicly available research for informational purposes. FitChef does not perform original clinical research, provide medical advice, or offer treatment recommendations. Certainty tiers reflect the volume and agreement of the underlying evidence, not an editorial endorsement of study quality. Consult a qualified healthcare professional before making changes to your diet or exercise regimen.

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