How do I lose weight using my TDEE?

To lose weight, eat less than your TDEE. A deficit of 300–500 calories per day leads to steady fat loss of 0.5–1 lb per week. Track your intake for 2–3 weeks and adjust based on results.

Is TDEE the same as BMR?

No. BMR is the number of calories your body burns at complete rest. TDEE includes BMR plus all additional calories burned through daily activity, exercise, and digesting food.

How accurate is a TDEE calculator?

TDEE calculators are estimates based on population averages. Most people find them accurate within 100–200 calories. Use the result as a starting point and adjust based on real-world results over 2–3 weeks.

Why am I not losing weight if I'm eating at a deficit?

The most common reasons are underestimating calorie intake, overestimating activity level, or water retention masking fat loss. Track food accurately for 2 weeks before adjusting your deficit.

Should I eat back calories burned during exercise?

It depends on how you calculated your TDEE. If you used an activity multiplier that includes your workouts, do not eat them back. If you used a sedentary multiplier and add exercise separately, eating back 50–75% of burned calories is reasonable.

How often should I recalculate my TDEE?

Recalculate every 4–6 weeks or whenever your weight changes by more than 5 lbs, your activity level changes significantly, or your results plateau for more than 3 weeks.

How much protein do I need per day?

Most research supports 0.7–1g of protein per pound of bodyweight per day for active individuals. For fat loss, staying toward the higher end helps preserve muscle. For muscle gain, 0.8–1g per pound is ideal.

Can I get enough protein without eating meat?

Yes. Plant-based sources like tofu, tempeh, edamame, lentils, chickpeas, and seitan are high in protein. Combining complementary protein sources throughout the day ensures you get all essential amino acids.

Is too much protein bad for you?

For healthy individuals, high protein intakes up to 1.5g per pound of bodyweight are generally safe. The concern about kidney damage from protein applies only to people with pre-existing kidney conditions.

What protein sources are best for muscle gain?

Animal sources like chicken, beef, eggs, fish, and dairy are complete proteins with high bioavailability. Whey protein is particularly effective post-workout. For plant-based options, soy protein and pea protein are the closest equivalents.

Should I change my protein intake when cutting?

Yes — increase it. When in a calorie deficit, higher protein intake (0.8–1.2g per pound) helps preserve lean muscle mass. This is one of the most evidence-backed strategies for improving body composition while losing fat.

What is a macro split?

A macro split is the percentage of your daily calories that come from protein, carbohydrates, and fat. A common split for fat loss is 40% protein, 30% carbs, 30% fat. For muscle gain, a 30% protein, 45% carbs, 25% fat split is often used.

Do I need to track macros to lose weight?

No — total calorie intake drives weight loss, not macro ratios. However, tracking macros gives you more control over body composition, energy levels, and hunger. It is especially useful if you want to lose fat while preserving muscle.

How many carbs should I eat per day?

Carb needs vary based on activity level and goals. After setting protein and fat targets, carbs fill the remaining calories. Active individuals and those focused on muscle gain benefit from higher carb intakes, while lower carb approaches can work for fat loss.

Should I go low fat or low carb for fat loss?

Research shows both approaches produce similar fat loss results when calories and protein are equated. Choose the approach that best fits your food preferences and lifestyle — the one you can sustain is the one that works.

How do I adjust my macros if I hit a plateau?

First verify your tracking accuracy. If intake is accurate, reduce calories by 100–150 per day by lowering carbs or fat slightly. Avoid dropping protein. Alternatively, increase daily activity with walking or NEAT before cutting more calories.

Can I build muscle and lose fat at the same time?

Yes — this is called body recomposition. It works best for beginners, those returning after a break, and people with higher body fat percentages. It requires eating near maintenance calories with high protein and consistent resistance training.

What is a healthy BMI?

A BMI between 18.5 and 24.9 is considered healthy for most adults. However, healthy BMI ranges can vary slightly by age and ethnicity. Asian populations may have health risks at lower BMI thresholds than the standard classification suggests.

Is BMI accurate for muscular people?

No — BMI is not accurate for highly muscular individuals. Since muscle is denser than fat, athletes and bodybuilders often show a high BMI despite having low body fat. In these cases, body fat percentage is a more reliable measure.

Can I have a normal BMI but still have too much body fat?

Yes. This is called normal weight obesity and occurs when someone has a healthy BMI but a high percentage of body fat due to low muscle mass. This is why BMI should always be considered alongside other measures like waist circumference and body composition.

How often should I calculate my BMI?

Once every 4–8 weeks is sufficient for most people. BMI changes slowly and daily fluctuations in water weight can give misleading readings. Track trends over months rather than obsessing over weekly numbers.

Does BMI differ for men and women?

The BMI formula is the same for men and women, but body fat distribution differs between sexes. Women naturally carry more body fat than men at the same BMI. Some health professionals use gender-specific adjustments when interpreting BMI results.

What should I do if my BMI is in the Obese range?

Start with sustainable changes — a modest calorie deficit, daily walking, and resistance training 2–3 times per week. Even a 5–10% reduction in body weight produces significant health benefits. Use a TDEE calculator to find your calorie target and a protein calculator to protect muscle while losing fat.

How do I calculate my calorie deficit?

Subtract your target daily calories from your TDEE. For example, if your TDEE is 2,500 kcal and you eat 2,000 kcal, your deficit is 500 kcal/day. Over 7 days that is a 3,500 kcal weekly deficit — enough to lose approximately 0.45 kg per week.

Is a 500 calorie deficit safe?

Yes — a 500 kcal/day deficit is widely considered safe and sustainable for most healthy adults. It produces roughly 0.5 kg of fat loss per week without significantly impacting energy levels or muscle mass, especially when paired with adequate protein intake.

What happens if my deficit is too large?

Deficits above 1,000 kcal/day increase the risk of muscle loss, nutrient deficiencies, fatigue, and metabolic adaptation. Staying in a moderate deficit is more effective over time.

Should I eat back calories burned during exercise?

It depends on how your TDEE was calculated. If your activity level already accounts for your workouts, do not eat them back. If you selected a sedentary multiplier and exercise on top of that, eating back 50–75% of burned calories is a reasonable approach.

Why am I not losing weight in a calorie deficit?

The most common reasons are underestimating calorie intake, overestimating portions, or not accounting for liquid calories and cooking oils. Water retention from high sodium, stress, or new training can also mask fat loss on the scale for 1–2 weeks.

How much protein should I eat in a calorie deficit?

Aim for 1.6–2.2g of protein per kg of bodyweight while cutting. Higher protein intake preserves muscle mass, keeps you fuller for longer, and has a higher thermic effect.

What is a healthy body fat percentage?

For men, a healthy body fat percentage is generally 14–24%. For women, it is 21–31%. Body fat above 25% for men and 32% for women is associated with increased health risks.

How accurate is the Navy method?

The US Navy method is accurate within 3–4% for most people when measurements are taken correctly. It is more accurate than BMI-based estimates but less precise than DEXA scans.

How often should I measure my body fat?

Every 4–6 weeks is sufficient for most people. Always measure under the same conditions: same time of day, same hydration level, and same method.

Can I lose fat and gain muscle at the same time?

Yes — this is called body recomposition. It is most effective for beginners, people returning after a break, and those with higher body fat percentages. It requires eating near maintenance calories with high protein intake and consistent progressive resistance training.

Why do men and women have different healthy body fat ranges?

Women naturally carry more essential fat than men due to hormonal differences and the physiological demands of reproduction. Women require approximately 10–13% essential fat compared to 3–5% for men.

What is the fastest way to lower body fat percentage?

A combination of a moderate calorie deficit, high protein intake, and resistance training produces the fastest sustainable results. Resistance training preserves muscle — losing muscle raises your body fat percentage even if the scale drops.

There is no universal good BMR — it varies based on your size, age, and gender. A typical BMR for an adult male is 1,600–2,000 kcal/day and for an adult female is 1,300–1,600 kcal/day.

Does muscle mass affect BMR?

Yes — muscle tissue burns approximately 3 times more calories at rest than fat tissue. Building muscle through resistance training raises your metabolic floor, making it easier to maintain a healthy weight over time.

Why does BMR decrease with age?

BMR decreases with age primarily because of sarcopenia — the natural loss of muscle mass that begins around age 30. Regular resistance training significantly slows this decline and can even reverse it.

Can I increase my BMR?

Yes — the most effective way to increase your BMR is to build muscle through resistance training. Other factors include eating adequate protein, getting sufficient sleep, managing stress, and avoiding prolonged very low calorie diets.

Should I eat at my BMR to lose weight?

No — eating exactly at your BMR is too aggressive and risks muscle loss, fatigue, and nutrient deficiencies. Your fat loss calorie target should be below your TDEE but above your BMR.

How does BMR differ from RMR?

BMR requires strict laboratory conditions — complete physical rest, a fasted state, and a thermoneutral environment. RMR is measured under less strict conditions and is typically 10–20% higher than BMR. The practical difference for calorie planning is minimal.

Protein Calculator — How Much Protein Do You Need?

Q: Does protein timing matter?

Total daily protein intake matters far more than timing. That said, spreading protein across 3–4 meals and consuming 20–40g within a few hours of training can help maximize muscle protein synthesis.

Protein Calculator

Calculate your daily protein intake based on your weight and goal.

Weight (kg)

Goal

Protein ranges used:
Fat loss: 1.8–2.4 g/kg (0.82–1.09 g/lb)
Maintenance: 1.4–2.0 g/kg (0.64–0.91 g/lb)
Muscle gain: 1.6–2.2 g/kg (0.73–1.00 g/lb)

Please enter a valid weight.

Daily Target

g/day

Per Meal (4 meals)

g/meal

Full Range by Goal

What this means

How to use this protein calculator

Enter your weight
Choose kg or lb
Select your goal
Click Calculate my protein

The calculator will show:

A recommended daily range
A suggested target in grams per day

That target gives you a simple number to aim for without ignoring the fact that protein intake can work within a range.

Protein for fat loss

When eating in a calorie deficit, protein becomes your most important nutrient. Without enough protein, your body has a harder time holding onto muscle while losing fat — a process called muscle sparing.

During fat loss, a higher protein intake also helps in two practical ways:

Satiety: Protein keeps you fuller longer, making it easier to stay in a deficit without constant hunger.
Thermic effect: Your body burns more calories digesting protein than it does digesting carbs or fat.

This is why the recommended range during fat loss (1.8–2.4 g/kg) is higher than for maintenance. If you are also training while cutting, staying toward the upper end of the range helps preserve lean mass.

A practical target for most people cutting calories is around 2.0–2.2 g/kg of body weight per day.

Protein for maintenance

When your goal is simply to maintain your weight and general fitness, your protein needs are more moderate. You are not fighting to preserve muscle under a deficit, and you are not trying to maximize muscle growth — so the range is slightly lower.

At maintenance, the priority shifts to consistency. Eating enough protein to support recovery from training and daily activity is the main goal.

Active individuals: Aim for the upper half of the range (1.7–2.0 g/kg)
Less active individuals: The lower end (1.4–1.6 g/kg) is usually sufficient

If you are not tracking calories closely, a simple rule of thumb is to include a quality protein source in every meal. This alone gets most people close to their target without obsessing over exact numbers.

Protein for muscle gain

Building muscle requires two things: a training stimulus and enough protein to repair and grow muscle tissue. While many people assume they need massive amounts of protein to bulk, research consistently shows that more protein beyond a certain point does not lead to more muscle.

The effective range for muscle gain is 1.6–2.2 g/kg of body weight per day. Eating above 2.2 g/kg adds calories without meaningfully increasing muscle growth for most people.

Beginners: Even the lower end of the range (1.6 g/kg) is sufficient, since beginners gain muscle more easily
Intermediate/advanced: Staying around 1.8–2.2 g/kg gives you more margin, especially with heavier training loads

During a bulk, total calorie intake matters just as much as protein. Use our TDEE Calculator to set your calorie surplus first, then use this calculator to dial in your protein target.

Related Calculators

TDEE Calculator — Find your total daily calorie needs
BMR Calculator — Calculate your basal metabolic rate
Macro Calculator — Break your calories into protein, carbs, and fat
BMI Calculator — Calculate your Body Mass Index
Calorie Deficit Calculator — Set your fat loss calorie target
Body Fat % Calculator — Estimate your body fat percentage

Protein Calculator FAQ

Can I eat too much protein?

For most healthy people, eating within a reasonable range based on body weight is very safe. The idea that high protein intake damages kidneys is a myth for healthy individuals — this concern applies only to people with pre-existing kidney disease. That said, more protein is not infinitely better:

Beyond roughly 2.2–2.5 g/kg of body weight, additional protein does not contribute meaningfully to more muscle growth
Very high protein intakes can displace other important nutrients like carbs and fat, making your diet less balanced and harder to sustain
Excess protein calories still count — protein has 4 calories per gram, and eating far above your target adds to your total calorie intake

The goal is not to maximize protein — it is to eat enough to hit your target consistently. Staying within the recommended range for your goal is sufficient for the vast majority of people.

Does protein timing matter?

Protein timing matters less than most people think — total daily protein intake is by far the most important factor. That said, there are a few practical timing guidelines worth following:

Post-workout protein: Consuming protein within 1–2 hours after training can support muscle recovery, but the effect is modest compared to simply hitting your daily total
Spreading intake across meals: Your body can only use a limited amount of protein for muscle synthesis per meal — roughly 30–40g per sitting for most people. Spreading your intake across 3–4 meals is more effective than eating most of it in one or two sittings
Protein before bed: Some research supports consuming a slow-digesting protein source like cottage cheese or casein before sleep to support overnight muscle repair

If you are hitting your daily protein target, timing is a secondary optimization. Focus on consistency first, timing second.

What if I don't train?

You still need protein — but your requirements are lower than someone who trains regularly. Without a training stimulus, your body does not need as much protein for muscle repair and growth. However, protein still plays important roles in daily health:

Supporting immune function
Maintaining existing muscle mass (muscle loss accelerates with age if protein is too low)
Keeping you full and regulating appetite

For sedentary individuals focused on general health, the lower end of the maintenance range — around 1.2–1.4 g/kg of body weight — is a reasonable target. If your goal is fat loss without structured training, staying toward the higher end of the range (1.6–2.0 g/kg) still makes sense. Higher protein intake supports satiety and helps preserve muscle even without deliberate resistance training.

How much protein do I need to build muscle?

To build muscle effectively, most research points to a target of 1.6–2.2 g/kg of body weight per day as the optimal range. Key points:

1.6 g/kg is enough for most people to maximize muscle protein synthesis, especially beginners
2.0–2.2 g/kg gives you a margin of safety, particularly useful during harder training phases or when also managing calories
Going above 2.2 g/kg does not produce more muscle — the extra protein is simply used for energy

Protein alone does not build muscle. You need three things working together:

Enough protein to supply the raw material
A calorie surplus (or at minimum maintenance calories) to support growth
A progressive training program to provide the stimulus

Use our Macro Calculator to set your full calorie and macro targets for muscle gain.

What are the best high protein foods?

The best protein sources are ones that are high in protein relative to their calorie content, affordable, and easy to prepare consistently. Here are the most effective options by category: Animal sources (complete proteins):

Chicken breast — ~31g protein per 100g, very lean
Greek yogurt — ~10g per 100g, high satiety
Eggs — ~13g per 100g, highly bioavailable
Canned tuna — ~25g per 100g, cheap and convenient
Cottage cheese — ~11g per 100g, slow-digesting
Lean beef — ~26g per 100g, also high in iron and zinc

Plant sources:

Lentils — ~9g per 100g cooked, also high in fiber
Edamame — ~11g per 100g, one of the best plant complete proteins
Tofu — ~8g per 100g, versatile and affordable
Tempeh — ~19g per 100g, fermented and highly nutritious

For most people hitting a protein target of 150–200g per day, building meals around 1–2 animal protein sources and supplementing with plant proteins where needed is the most practical approach.

Is protein powder necessary?

No — protein powder is a supplement, not a requirement. You can absolutely hit your daily protein target through whole foods alone. That said, protein powder is useful in specific situations:

Convenience: A shake takes 2 minutes and delivers 25–30g of protein — useful when you are short on time or travelling
High targets: If your goal requires 180–220g of protein per day, fitting that entirely into whole food meals can be difficult and expensive. A shake or two makes it easier.
Post-workout: Fast-digesting whey protein is a practical post-training option when you cannot eat a full meal immediately

If you can hit your protein target comfortably through food, you do not need powder. If you are consistently falling short by 30–50g per day, a single daily shake is the simplest fix. Whey concentrate is the most cost-effective option for most people. Whey isolate is better if you are lactose sensitive. Plant-based blends (pea + rice) are the best option for vegans.