All Nutrition & Diet Articles

Protein calculator for training goals
Useful Tool · 4 min setup
Protein Calculator for Training Goals
Estimate a practical daily protein range based on body weight, your goal, and how many meals you actually eat in a day.
By Trendovnik Editorial Team
Caffeine before training
Supplements · 8 min read
Caffeine Before Training: How Much Helps, and When It Backfires
The practical answer on dose, timing, tolerance, sleep disruption, and when stimulant-heavy routines stop helping.
By Sarah Kowalski, RD
Electrolytes for Training: Who Actually Needs Them and When?
Hydration · 9 min read
Electrolytes for Training: Who Actually Needs Them and When?
Do you need electrolyte drinks for every workout? Here's the science-based answer on sweat loss, sodium, and actual need.
By Sarah Kowalski, RD
How Much Protein Do You Actually Need? A Science-Based Guide
Macronutrients · 9 min read
How Much Protein Do You Actually Need? A Science-Based Guide
Optimal intake for muscle building, fat loss, and healthy ageing — based on meta-analyses.
By Sarah Kowalski, RD
The Complete Beginner's Guide to Meal Prepping for Fat Loss
Meal Planning · 11 min read
The Complete Beginner's Guide to Meal Prepping for Fat Loss
Step-by-step system to prep a week of healthy food in 2 hours — and make it sustainable.
By Sarah Kowalski, RD
Creatine: The Complete Science-Based Guide
Supplements · 10 min read
Creatine: The Complete Science-Based Guide
The most researched supplement in the world — with 500+ peer-reviewed studies behind it.
By Sarah Kowalski, RD
How to Lose Belly Fat: What the Science Actually Says (No Myths)
Fat Loss · 12 min read
How to Lose Belly Fat: What the Science Actually Says (No Myths)
No spot reduction, no magic foods. The honest physiological truth about abdominal fat loss.
By Coach Elena Petrov, CPT
7-Day High-Protein Meal Plan for Muscle Gain (With Calories and Macros)
Meal Planning · 11 min read
7-Day High-Protein Meal Plan for Muscle Gain (With Calories and Macros)
Complete 7-day muscle-building meal plan with exact portions and full macros.
By Sarah Kowalski, RD
Intermittent Fasting: What the Science Actually Says About Weight Loss
Dieting · 10 min read
Intermittent Fasting: What the Science Actually Says About Weight Loss
What IF does well, where it is overhyped, and who it is actually right for.
By Sarah Kowalski, RD
The 6 Vitamins and Minerals That Actually Matter for Athletic Performance
Supplements · 9 min read
The 6 Vitamins and Minerals That Actually Matter for Athletic Performance
Vitamin D, magnesium, iron, omega-3, zinc, and B12 — the six with genuine evidence.
By Sarah Kowalski, RD
Gut Health and Athletic Performance: What Every Fitness Enthusiast Needs to Know
Wellness · 9 min read
Gut Health and Athletic Performance: What Every Fitness Enthusiast Needs to Know
The gut microbiome influences nutrient absorption, immunity, and mental state.
By Sarah Kowalski, RD