The Fitlydoo Blog

Health, Nutrition & Fitness Explained Simply

Plain-language, evidence-based articles on calories, protein, hydration, metabolism, and more — written to help you make smarter, better-informed wellness decisions.

Understanding Your BMR (Metabolism)

What is my BMR, and what does it really say about your metabolism? This plain-language guide explains Basal Metabolic Rate, how to calculate BMR, the crucial BMR vs TDEE difference, why your BMR might seem low, and how to raise it — with free calculators to find your own numbers.

September 16, 2026 12 min read

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High-protein foods including chicken, eggs, salmon, yogurt, lentils and tofu illustrating daily protein needs

Nutrition

How Much Protein Do You Need Per Day?

Your daily protein needs depend on your weight, activity level, and goal — not a single universal number. Here is a plain-language guide to how much protein you really need per day, with examples, food tables, and a calculator to find your own target.

August 20, 2026 16 min

Healthy foods and a calorie calculator illustrating daily calorie needs

Nutrition

How Many Calories Should You Eat Per Day?

Your daily calorie needs depend on your age, sex, size, activity, and goal. Here is a plain-language guide to figuring out exactly how many calories you should eat — and how to use that number.

August 10, 2026 14 min

Illustration of Basal Metabolic Rate showing a resting human figure with an energy meter and organ icons

Metabolism

Understanding Your BMR: The Science Behind Your Metabolism

Your Basal Metabolic Rate is the number of calories your body burns just to stay alive. This guide explains what BMR is, the Mifflin-St Jeor equation behind it, how it differs from TDEE, what affects it, and whether you can actually change your metabolism.

September 20, 2026 5 min

Flat-lay of high-protein foods including chicken, eggs, salmon, Greek yogurt, lentils and tofu illustrating common protein myths

Nutrition

Protein Myths Explained: The Truth About How Much You Really Need

Most common protein advice is outdated or wrong. This guide debunks the biggest protein myths — the 30g-per-meal absorption limit, kidney damage fears, the anabolic window, and more — with the actual science and free Fitlydoo calculators.

September 20, 2026 7 min

A glass of water surrounded by hydrating fruits and vegetables like watermelon, cucumber, oranges and strawberries

Hydration

Staying Hydrated Every Day: Beyond the 8 Glasses a Day Myth

You do not need exactly eight glasses of water a day. This guide explains personalized hydration based on your weight and activity, the signs of dehydration, the role of electrolytes, and why coffee, tea, and food all count toward your daily water intake.

September 20, 2026 4 min

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