How to Lose Weight Safely

7 steps 30 min Beginner

Sustainable weight loss is 80% diet, 20% exercise, 0% supplements. The biology is straightforward — eat 300-500 calories below your maintenance level, lift weights to preserve muscle, sleep 7+ hours, repeat. Loss should be 1-2 lbs/week max; faster loss is mostly water and muscle, and rebounds.

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Step-by-Step Instructions

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Step 1: Calculate your maintenance calories

Maintenance is what you eat to stay the same weight. Use a calculator (TDEE Calculator at iifym.com), then subtract 300-500 calories. That's your deficit target. Most people overestimate their maintenance — start with the calculator's number, adjust after 2 weeks based on the scale.

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TDEE Calculator (iifym.com) — free

Estimates Total Daily Energy Expenditure from age, weight, height, activity. The starting point.

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Subtract 300-500 calories for deficit

300 = slow & sustainable. 500 = ~1 lb/week loss. Don't go below 500 deficit — too aggressive, kills muscle and metabolism.

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Adjust every 2 weeks based on scale

If you didn't lose: drop 100 more calories. If you lost too fast (>2 lbs/week): add 100. The calculator is a starting point, your body is the test.

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Step 2: Track everything (just for 2-3 weeks)

Most people who 'eat clean and don't lose weight' are eating 500-1000 calories more than they think. Tracking for 2-3 weeks calibrates your eyeballs. After that you can stop tracking and just maintain the patterns.

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MyFitnessPal (free)

Massive food database, barcode scanning. The standard. Track for 2-3 weeks then stop.

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Cronometer (better data)

More accurate database than MyFitnessPal, also tracks micronutrients. Free + Pro at $50/year.

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Digital food scale (essential)

Eyeball estimates are off by 30-50%. Weigh portions in grams for 2-3 weeks. ~$15.

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Step 3: Eat 0.7-1g protein per pound of bodyweight

Protein preserves muscle in a deficit (so you lose fat, not muscle) and keeps you full longer than carbs or fat. 150 lb person = 105-150g protein daily. Spread across 3-4 meals.

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Whole food protein at every meal

Chicken, fish, eggs, Greek yogurt, lean beef, tofu, cottage cheese. Aim for 30-40g per meal.

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Protein powder to hit targets

If you can't hit protein with whole food, supplement. Optimum Nutrition Gold Standard is the trusted default. ~$60 per 5 lb tub.

$0.86/use $60 for 70 View Details
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Greek yogurt for snacks

Plain nonfat: 17g protein per 6 oz, 100 calories. The single most efficient cheap protein source. ~$5 per quart.

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Step 4: Lift weights 3 days per week

Cardio burns calories but doesn't preserve muscle in a deficit. Weights do. Three full-body sessions per week (squat, deadlift, bench, row, overhead press) cover almost everything. Even 30 minutes per session is enough.

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Strong Lifts 5x5 (beginner program)

Free PDF program. Three full-body workouts, five exercises each, five sets of five reps. The classic.

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Starting Strength (book)

Mark Rippetoe's foundational program. ~$25.

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Adjustable dumbbells for home gym

Bowflex SelectTech 552 dumbbells (5-52.5 lb adjustable). Replaces 15 pairs. ~$450 for the pair.

$450 one-time View Details
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Planet Fitness or Crunch ($10-25/month)

Cheap gyms. Plenty of equipment for a 5x5 program. The 'no excuses' option.

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Step 5: Sleep 7+ hours per night

Sleep deprivation increases ghrelin (hunger) and cortisol (belly fat storage). Studies show dieters who sleep less than 6 hours lose 60% less fat for the same calorie deficit. Sleep is a fat loss tool.

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Fixed sleep schedule (same bedtime daily)

Wake time matters more than weekend bedtime. Consistent within 30 minutes = better metabolic results than perfect sleep duration.

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Dark, cool bedroom (65-68°F)

Cool temperature triggers deeper sleep. Blackout curtains or sleep mask. ~$25.

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No screens 30 min before bed

Phone/TV light delays melatonin. Use night mode on phone or just put it away.

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Step 6: Weigh yourself daily, average weekly

Daily weight bounces 2-4 lbs from water alone. Don't trust any single number. Weigh daily, take a 7-day average, only the trend matters. A smart scale automates this.

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Renpho smart scale (with weekly average)

Bluetooth scale, syncs to app, shows weekly average automatically. ~$25.

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Daily weigh-in, weekly average only

Step on every morning fasted. Write down or app-track. Look at the 7-day average — that's the real signal.

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Step 7: Target 1-2 lbs per week (no faster)

Faster loss is mostly water and muscle. Both come back. Sustainable fat loss is 1-2 lbs/week for the first 3 months, then slower as you approach your goal. Anyone selling 'faster than this' is selling something that rebounds.

Warning: Below 1500 calories for women / 1800 for men is too aggressive long-term. Crashes the metabolism, kills muscle. Better slow than rebound.

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1-2 lbs per week first 3 months

After 3 months, drop to 0.5-1 lb/week as you approach goal weight. Last 5-10 lbs are always the slowest.

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Take a 1-2 week break every 2-3 months

Eat at maintenance for 1-2 weeks every couple months. Restores metabolism and gives a mental break. Doesn't slow long-term progress.

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