What is a macro calculator?

A macro calculator estimates how many grams of protein, carbohydrates, and fat you should eat each day based on your weight, height, age, sex, activity level, and goal. kkal.ai uses the Mifflin-St Jeor equation to calculate BMR, multiplies by an activity factor to get TDEE, then splits the calorie target into macro grams.

How accurate is the Mifflin-St Jeor equation?

The Mifflin-St Jeor equation is considered the most accurate predictive equation for resting metabolic rate in healthy adults. A 2005 Academy of Nutrition and Dietetics review found it predicted RMR within 10% of measured values in roughly 82% of non-obese adults.

Is kkal.ai free to use?

Yes. The kkal.ai macro calculator, BMR calculator, and AI meal photo analyzer are free to use on the web. No account is required to use the standalone calculators.

What macro split should I use for weight loss?

kkal.ai recommends 40% protein, 40% carbohydrates, and 20% fat for weight loss. Higher protein intake helps preserve lean muscle in a calorie deficit and increases satiety. For maintenance or muscle gain, a 30/45/25 split is the default.

How does kkal.ai analyze meal photos?

kkal.ai uses GPT-4 Vision to identify foods in an uploaded photo, then estimates calories, protein, carbohydrates, and fat per item based on visible portion sizes and standard nutrition data.

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fitness · 2024-01-03 · 8 min read · by kkal.ai Editorial

Strength Training for Beginners: Building a Strong Foundation

Start your strength training journey with confidence using this comprehensive beginner's guide to building muscle and improving overall fitness.

Strength training is one of the most effective ways to improve your overall health, build muscle, and increase bone density. If you're new to lifting weights, this guide will help you start safely and effectively.

Benefits of Strength Training

Increased muscle mass: Build lean muscle tissue
Improved bone density: Reduce risk of osteoporosis
Better metabolism: Muscle tissue burns more calories at rest
Enhanced functional strength: Improve daily activities
Injury prevention: Strengthen supporting muscles and joints

Essential Exercises for Beginners

Upper Body:

Push-ups or chest press
Rows or pull-ups
Overhead press
Bicep curls
Tricep extensions

Lower Body:

Squats
Deadlifts
Lunges
Calf raises
Glute bridges

Programming Basics

Start with:

2-3 sessions per week
8-12 repetitions per exercise
2-3 sets per exercise
48-72 hours rest between sessions
Progressive overload - gradually increase weight or reps