What is the best time to weigh myself?
Your weight changes throughout the day. The average adult’s body weight swings between 1 to 2 kilograms (2.2 to 4.4 pounds) over the course of a single day.
Fitness Image knowledge hub
Train smarter.
Eat with purpose.
Practical, evidence-informed guides for building strength, improving fitness and making nutrition decisions that work in real life.
Choose your goal
Start with a core topic
Each topic page brings together 20 current guides, with pagination for the complete archive.
01 / MOVE
Fitness
Workouts, conditioning, recovery and practical ways to improve your physical capacity.
Browse fitness guides → 02 / FUELNutrition
Protein, healthy eating, fasting and evidence-informed guidance without diet noise.
Browse nutrition guides → 03 / PROGRESSWeight loss
Calorie balance, sustainable fat loss and habits designed to hold up over time.
Browse weight-loss guides →Explore every topic
Fresh from the library
Latest articles
New and recently refreshed guides from the Fitness Image editorial library.
Is 100g of protein too much?
A 2023 study published in Cell Reports Medicine found that your body can use up to 100 grams of protein in a single sitting for muscle building.
Which meal is best to skip for weight loss?
A 2019 review of 13 studies published in the BMJ found that people who ate breakfast actually gained about 0.5kg less than breakfast skippers.
Is walking for 30 minutes a day enough exercise?
Your body burns calories from everything you do outside the gym. Scientists call this NEAT, which stands for Non Exercise Activity Thermogenesis.
How many calories do models eat?
While calorie needs vary by individual metabolism, height and activity level, many runway models consume between 1,500 to 2,000 calories daily.
What are the healthiest eggs to eat?
Mother Earth News tested eggs from 14 pasture raised flocks across the United States and compared them to USDA data for commercial eggs.
How did Kelly Clarkson really lose weight?
Kelly was diagnosed as prediabetic in January 2024. Her blood sugar levels sat higher than normal but hadn’t crossed into Type 2 diabetes territory yet.
What grows muscle the fastest?
The sweet spot for most people is 6 to 12 reps per exercise. Go heavier some weeks with 4 to 8 reps. Go lighter other weeks with 12 to 15 reps.
Does Metamucil 14 day cleanse help you lose weight?
A 2023 meta analysis of six clinical trials found that people who took around 10 grams of psyllium per day lost about 2.1 kg over roughly 5 months compared to people who took a placebo.
Is your true weight in the morning?
Registered dietitian Anne Danahy puts it this way. The average change is 2 to 5 pounds per day and it’s due to fluid shifts throughout the day.
Can You Still Build Muscle at 40? A Practical Guide
Muscle mass starts declining around age 30, dropping about 3 to 8 percent per decade. By 40, this loss picks up speed if you sit on the couch and do nothing.
What does a cortisol belly look like?
A cortisol belly happens when the stress hormone cortisol stays high for a long time and your body stores extra fat around your middle.
What should I eat to gain muscle after 60?
Eat a mix of protein and carbs about 30 to 60 minutes before you train. The carbs give you energy and the protein starts the muscle building process.
Is pilates strength training?
Pilates works your core muscles and improves your balance and flexibility. You hold positions and move through controlled motions that challenge your stabilizer muscles.
Does castor oil help with cellulite?
Castor oil contains ricinoleic acid, which has anti-inflammatory properties. Some people believe this helps reduce swelling and improve skin appearance.
Best pre workout supplement for bodybuilding
If you train in the evening, caffeine can wreck your sleep even if you don’t feel wired. Caffeine has a half life of about 5 hours meaning half of it remains in your system after that time.
What do you crave when your B12 is low?
Beef liver has 70 micrograms of B12 per serving. Clams pack 84 micrograms in just 3 ounces. Salmon gives you double your daily needs in one serving.
How can you tell when an elderly person is declining?
Muscle loss speeds up after age 30 and people lose about 3% to 8% of muscle mass every decade. After age 60 this loss gets faster.
Are Bananas Good for Muscle Growth? What They Actually Do
Eat bananas about 30 to 60 minutes before you train. The natural sugars in bananas break down fast and give you quick energy.
What age is considered old for a woman?
The World Health Organization sets 65 as the start of older age. But this number comes from pension systems, not biology.