Maintenance Calories: Calculate Your TDEE

import { MedicalDisclaimer } from "@/components/blog/medical-disclaimer";

**Quick answer:** Your maintenance calories equal your Total Daily Energy Expenditure (TDEE) — the number of calories that keeps your weight stable. Calculate BMR with Mifflin-St Jeor, multiply by your activity factor (1.2–1.9), and adjust based on your real, current weight. Manual methods typically carry a 5–10% error; a dynamic calculation that updates with your logged weight is meaningfully more accurate.

You've hit your target weight. That's a real accomplishment — most people never get there. But now the harder part begins: staying there. Maintenance is a different skill set than weight loss, and it starts with understanding exactly how many calories keep your body in balance right now.

What Are Maintenance Calories?#

Maintenance calories are the same as your TDEE (Total Daily Energy Expenditure) — the total energy your body burns in a day, from your resting metabolism to exercise and everything in between, including spontaneous movement (NEAT: non-exercise activity thermogenesis).

The formula looks clean:

TDEE = BMR × Activity Factor

BMR (Basal Metabolic Rate) via Mifflin-St Jeor:

• Men: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) + 5
• Women: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) − 161

Activity multipliers:

Example: a 35-year-old woman, 68 kg, 165 cm, moderately active (factor 1.55):
BMR ≈ 1,332 kcal → TDEE ≈ 2,065 kcal/day.

Why the Manual Method Has a 5–10% Error#

The formula looks precise but the activity factor is a rough estimate — and people consistently misjudge it. An hour of running might burn 500 kcal, but spontaneous compensation (moving less for the rest of the day, lower NEAT) can absorb 150–200 of those. Mifflin-St Jeor is also a population-level average, not a personalised measurement.

In practice, your "true" TDEE might differ from the formula by 100–250 kcal/day. That sounds modest, but 200 kcal/day over a year is 73,000 kcal — roughly 8 kg in theory.

Smaklig addresses this by:

1. Using Mifflin-St Jeor as the starting point
2. Automatically updating the calculation each time you log your weight
3. Gradually adjusting the calorie target based on your actual weight trend, not formula alone

Create a free account at Smaklig to get a dynamic TDEE calculation that keeps itself current.

Maintenance Calories ≠ Your Cut Calories Plus a Little Extra#

The most common mistake after successful weight loss: add 200–300 kcal to the daily deficit and assume that's maintenance. It isn't, for two distinct reasons.

Metabolic adaptation: Helms et al. (2014) documented that natural athletes after a controlled cutting phase showed a resting metabolic rate 5–10% below what Mifflin-St Jeor predicted for their new bodyweight (Helms et al., 2014). The body actively conserves energy in response to a sustained deficit.

Lower body mass: With 10 kg less body weight, your BMR genuinely drops — there's simply less tissue to maintain. Your maintenance calories will always be lower than they were before you lost the weight.

The solution — reverse diet: Increase calories incrementally, 50–100 kcal per week, and observe the effect on your weight over 2–3 weeks at each step. Slow, but it prevents rebound and lets your metabolism adapt.

Protein as the Foundation for Muscle Preservation#

NNR 2023 recommends 1.1–1.3 g of protein per kg of body weight for healthy adults. For those actively aiming to preserve lean mass after weight loss, 1.6 g/kg is a more appropriate target.

Livsmedelsverket, Sweden's national food authority, emphasises varied protein sources — legumes, dairy, fish, meat, and eggs. Swedish staples like quark (18 g protein per 100 g), salmon, and eggs are cost-effective options that anchor a solid maintenance week.

Leidy et al. (2015) found that a protein-rich breakfast pattern produced better appetite regulation and more stable daily energy intake (Leidy et al., 2015). That habit becomes especially useful during maintenance, when the structure of a diet is loosening and meal consistency matters even more.

A Practical Calorie Budget: Three Steps#

Step 1 — Calculate your starting point: Use Mifflin-St Jeor with your current weight, not data from three months ago.

Step 2 — Test for 2–3 weeks: Eat at your calculated TDEE. Log your weight each morning under consistent conditions (same time, before eating). Calculate weekly averages — they smooth out daily fluctuations from water and food volume.

Step 3 — Fine-tune: If your weekly average is rising consistently, reduce by 50–75 kcal. Falling? Add 50–75 kcal. Make changes gradually, not in sudden large jumps.

Most people find their true maintenance within 6–8 weeks of deliberate testing.

Structure, Not Strict Rules#

Long-term maintenance isn't about counting calories indefinitely. The goal is building a pattern that maintains balance naturally. That means:

• Regular meals: 3–4 meals per day at roughly consistent times
• Portion consistency as a rule of thumb: Eat similar-sized meals at each slot without weighing every gram
• A weekly menu as your anchor: A planned week with fixed lunches and dinners is the single most effective tool for stable calorie balance

See the maintenance weekly menu guide for a concrete five-day structure built around Swedish supermarket staples and NNR 2023 guidance.

Applying This to Swedish Grocery Shopping#

With a TDEE of roughly 2,100 kcal/day and three main meals, a rough budget looks like this:

• Breakfast: 400–450 kcal (quark + berries + crispbread)
• Lunch: 650–700 kcal (salmon or chicken with vegetables and rice)
• Dinner: 650–700 kcal (bean stew, fish, or chicken)
• Snacks: 300–400 kcal (fruit, nuts, protein yoghurt)

ICA, Coop, and Willys regularly run promotions on salmon, quark, and legumes. Smaklig pulls these campaigns automatically and suggests substitutions in your weekly menu that keep you within your calorie budget without extra planning. Read more in the ICA campaigns guide.

Frequently Asked Questions#

How do I calculate my maintenance calories?#

Calculate your BMR using the Mifflin-St Jeor formula, then multiply by your activity factor (1.2–1.9). A 35-year-old woman weighing 68 kg, 165 cm tall, with moderate activity levels lands at roughly 2,050 kcal per day. Smaklig performs this calculation automatically and updates it as your weight changes.

Why is a manual TDEE calculation imprecise?#

The activity multiplier is the main source of error. Most people misjudge their movement level, and the gap between "lightly active" and "moderately active" can amount to 300–400 kcal per day. Mifflin-St Jeor is also calibrated on population-level data, not your individual physiology.

Do I need to count calories to maintain my weight?#

Not necessarily down to the gram — but you do need a working model of your energy balance. Many people succeed with consistent structure: predictable portion sizes, regular mealtimes, and a planned weekly menu. Smaklig helps you maintain that structure without obsessive tracking.

How do maintenance calories change after weight loss?#

They drop, for two reasons: you weigh less (lower BMR) and adaptive thermogenesis can reduce your resting metabolism a further 5–15%. Helms et al. (2014) documented this in natural athletes post-cut. It's normal and best addressed through a gradual reverse diet.