You're consistent in the gym, pushing yourself through hard sets of squats, presses, and rows. But when you look in the mirror or step on the scale, the needle isn't moving. It's one of the most frustrating plateaus in fitness: you're putting in the work, but not seeing the growth. The problem often isn't your training plan; it's your nutrition plan. Building muscle is an energy-intensive process, and without sufficient fuel, your body simply cannot create new tissue.
This isn't just about slamming a protein shake after your workout. It's about your total energy balance over days and weeks. To find out if you're truly eating enough, we've developed a 5-question quiz. Go through each question honestly. If you find yourself answering 'no' or 'I don't know' to several of these, you've likely found the bottleneck that's holding back your progress.
Your training age is the single most important factor in determining your nutritional needs. A beginner's body is hyper-responsive to training, while an advanced lifter's body is highly resistant to change.
Verdict: If you are an intermediate or advanced lifter and are not in a calculated calorie surplus, you are not eating enough to build muscle effectively.
Your current body fat percentage dictates how your body partitions nutrients. Body fat is stored energy, and the more you have, the more willing your body is to use it to fuel processes like muscle repair and growth.
Verdict: The leaner you are, the more critical a calorie surplus becomes. If you're under 15% body fat (for men) and not deliberately eating more than you burn, you're fighting a losing battle.
Your training logbook is the ultimate source of truth. If you are eating enough to grow, your performance in the gym should be measurably improving over time. This is called progressive overload.
Stagnation is the clearest sign of under-fueling. Ask yourself:
If your squat has been stuck at 225 lbs for 3 sets of 5 for over a month, and you feel like you're grinding out every rep, your body is sending a clear signal: it doesn't have the resources to adapt and get stronger. A properly fueled lifter should see small but consistent jumps in performance. Even adding 5 lbs to your bench press every month is significant progress. Without that forward momentum, you are simply maintaining, not building.
Verdict: If your numbers in your logbook have been flat for more than two weeks, it's a major red flag that you are not eating enough to fuel recovery and growth.
Biofeedback from your own body can provide valuable clues. While not a perfect measure, your hunger signals can tell a story about your metabolic rate.
Verdict: If you're rarely hungry or feel too full to hit your calorie goals, you need to adjust your food choices to include more calorie-dense items.
Workouts don't build muscle; they break it down. The growth happens when you recover. Nutrition is the single most important component of that recovery process.
Ask yourself these questions about your recovery:
Verdict: If you're constantly sore, tired, sleeping poorly, and dreading your workouts, your body is screaming for more resources. You are not eating enough to recover, let alone build new muscle.
If you identified with the problem scenarios in two or more of the questions above, you have your answer. You are not eating enough to build muscle. The solution isn't a new training program or a magic supplement; it's a simple, calculated increase in your daily food intake. Follow these three steps to find the exact calorie and protein targets you need to grow.
This is the number of calories you need to eat to keep your weight the same. A simple and effective estimate for an active person is to multiply your body weight in pounds by 15.
*Example: If you weigh 180 lbs.*
180 lbs x 15 = 2,700 calories. This is your estimated daily maintenance level.
Now, add a 10-15% surplus to your maintenance number. A smaller surplus minimizes fat gain, which is ideal. We recommend starting with 10%.
*Example: Using the 2,700 maintenance calories.*
2,700 x 0.10 = 270 calories.
Your new target is 2,700 + 270 = 2,970 calories. You can round this to 3,000 calories per day for simplicity.
Finally, calculate your protein needs. The effective range is 1.6 to 2.2 grams of protein per kilogram of body weight. We'll use 1.8g as a solid middle ground. First, convert your weight from pounds to kilograms by dividing by 2.2.
*Example: For a 180 lb person.*
180 lbs / 2.2 = 81.8 kg.
81.8 kg x 1.8 g/kg = 147 grams of protein per day.
Manually tracking these numbers every day can be tedious. You have to look up each food item and log it in a spreadsheet. This is where many people give up. To make it faster, you can use an app like Mofilo. You can scan a barcode, snap a photo of your meal, or search its database of 2.8 million verified foods. It takes about 20 seconds instead of 5 minutes per meal.
Once you consistently hit your new calorie and protein targets, you should see progress. A realistic rate of weight gain is between 0.25% and 0.5% of your body weight per week. For a 180-pound person, this is about 0.45 to 0.9 pounds per week. This slow and steady rate ensures most of the weight you gain is muscle, not excess fat.
Your performance in the gym is another key indicator. You should feel stronger and be able to add weight or reps to your lifts on a regular basis. If your weight on the scale is not increasing for two consecutive weeks, and your lifts have stalled, increase your daily calories by another 100-150. Re-evaluate after another two weeks. Building muscle is a slow process, so consistency is more important than perfection.
Only if you are a complete beginner, returning from a long break, or have a significant amount of body fat. For trained individuals, it is extremely inefficient and nearly impossible to build meaningful muscle without a calorie surplus.
Not necessarily. Your body builds muscle during recovery, which happens 24-48 hours after you train. Hitting your average daily calorie target consistently every day is simpler and just as effective for most people.
Focus on calorie-dense foods. Add healthy fats like olive oil, nuts, seeds, and avocado to your meals. A tablespoon of olive oil has 120 calories. You can also drink some of your calories with smoothies containing protein powder, fruit, and nut butter.
All content and media on Mofilo is created and published for informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition, including but not limited to eating disorders, nutritional deficiencies, injuries, or any other health concerns. If you think you may have a medical emergency or are experiencing symptoms of any health condition, call your doctor or emergency services immediately.