You should aim to bulk about 0.25-0.5% of your body weight per week, which translates roughly to 0.2-0.4 kg (0.4-0.8 lbs) weekly for most people, focusing on a small calorie surplus (250-500 calories) above maintenance to build lean muscle without excessive fat gain, adjusting based on training experience (beginners at higher end, experienced at lower).
Most people would recommend about 0.5kg (just over 1lb) per week as the male body, doing everything right (eg lifting, adequate nutrition, calorie surplus, good sleep, hydrated etc) would still be only capable of creating about 1-2kgs of muscle per month at best. So anything above that is going to be excess fat.
1 Bulk is typically 2-5 KG, but things that are especially unwieldy and awkward to hold might have higher Bulk than their weight would suggest.
Short answer: Yes--gaining ~2 kg (4.4 lb) of lean muscle mass in 5--8 weeks is possible for many people, especially beginners, but results vary widely with training history, nutrition, genetics, sex, age, and program quality. Beware that measured weight gain often mixes muscle, water, glycogen, and some fat.
You should ideally not be gaining more than 0.5 kilograms a week when bulking.
How Can You Tell Whether You're Building Muscle?
The 40/40/20 rule in bodybuilding is a popular macronutrient split where daily calories are divided as 40% protein, 40% carbohydrates, and 20% fats, designed to support muscle growth, provide energy for workouts, and maintain essential bodily functions like hormone regulation, making it useful for cutting, bulking, or maintaining muscle mass. This balanced approach ensures adequate protein for repair, carbs for fuel, and fats for hormone health, though some experts suggest personalized ratios based on body type and goals.
What kills muscle gains most are poor recovery (lack of sleep, overtraining, high stress/cortisol), insufficient or poor-quality nutrition (not enough protein/carbs, excessive processed foods/sugar/alcohol), and inefficient training (too much cardio, bad form, focusing on isolation over compound lifts). Chronic stress elevates cortisol, which breaks down muscle, while inadequate protein, calories, and sleep directly impede repair and growth, making recovery paramount.
Overtraining symptoms include persistent fatigue, prolonged muscle soreness, declining performance, mood changes (irritability, depression), sleep disturbances, increased resting heart rate, frequent illnesses, and loss of appetite, signaling your body isn't recovering from intense training, often requiring reduced activity and rest for recovery.
The answer to how fast you can build muscle depends on many factors – but on average, under the right conditions, you can build about 1kg or 2lbs of muscle per month, or 0.25kg per week. This is assuming you're eating well and following a consistent exercise plan.
Quick Fast Bulking Tips:
For a 5'8" male, this translates to a weight range that corresponds to a healthy BMI. Using a BMI calculator with specific measurements will provide a more accurate range. For example, a 5'8" male with a BMI of 22 could weigh between 150-165 lbs, while one with a BMI of 25 could be 170-185 lbs.
Common Bulking Mistakes to Avoid
Building muscle takes time and consistency, so if you are flexing in front of the mirror daily, wondering what's going on, just be patient. On average, most people expect noticeable muscle growth within four to six months of starting a strength training program.
No, gaining 10 kg in one month is unhealthy and unrealistic.
How much should I bulk before cutting? A good rule of thumb for lifters is at least 8 - 12 weeks for bulking and then you can go into your cut phase if you're happy with the results.
The 70/30 rule in fitness suggests that 70% of your physical results (especially weight loss and body composition) come from nutrition and diet, while only 30% comes from exercise (gym workouts), emphasizing that what you eat is far more crucial for changing your physique than just working out, though both are important for overall health and muscle building. It highlights that while the gym breaks down muscles (the 30% effort), the kitchen (the 70%) provides the essential fuel, protein, and rest for them to repair and grow stronger.
It Actually Takes a Lot Longer Than You'd Think to Lose Muscle From Not Working Out. In other words, relax—a week or two off when you're sick or traveling isn't a dealbreaker.
The 80/20 rule in running is a training principle suggesting you should spend 80% of your training time at an easy, conversational pace (low intensity) and only 20% at a harder, more intense effort (high intensity), like tempo runs or intervals, to build aerobic fitness, improve performance, and prevent burnout. Developed by exercise physiologist Stephen Seiler, it combats the common mistake of running too many days in a moderate "gray zone," which hinders adaptation, and helps runners build a stronger aerobic base to support faster speeds.
How much coffee: The amount of coffee for bodybuilding should be tailored to your workout goals. It's better to take a larger dose of caffeine before a high-intensity, short-duration workout while a moderate dose of caffeine may be more appropriate for longer, endurance-based workouts.
Resistance exercise stimulates the release of growth hormone from the anterior pituitary gland, with released levels being very dependent on exercise intensity. Growth hormone helps to trigger fat metabolism for energy use in the muscle growth process.
The hardest muscles to grow for most people are the calves, due to their high percentage of endurance-focused Type I muscle fibers and constant use in daily activities, making them resistant to growth. Other notoriously stubborn areas include the forearms, upper chest, and rear deltoids, often because they're frequently used or neglected in workouts, requiring specific, high-intensity, and varied training to stimulate growth.
The worst carbs for belly fat are refined carbohydrates and added sugars, found in sugary drinks, white bread, pastries, and processed snacks, because they spike blood sugar and insulin, leading to increased fat storage, especially around the abdomen. While no single carb is solely responsible, these quickly digested, low-fiber options promote inflammation and insulin resistance, contributing to visceral (belly) fat.
If you're over 40 and new to training, here's the good news: you can build muscle and get stronger. And ladies, this applies to you, too. Research shows that resistance training can help women add lean muscle mass even after menopause.
Jennifer Aniston's 80/20 rule is a balanced approach to wellness, focusing on healthy, nutrient-dense foods 80% of the time while allowing for indulgences like pizza, pasta, or martinis (the 20%) without guilt, promoting consistency and sustainability over perfection. It's about moderation, enjoying life's treats, and getting back on track with healthy choices at the next meal or workout, emphasizing that no food is inherently "bad".