Weight Loss9 min read

How to Lose Weight Safely: Evidence-Based Guide

Lose weight the right way with this evidence-based, step-by-step approach to sustainable fat loss.

FitFlow Nutrition TeamUpdated 2026-02-10

1Calculate Your Maintenance Calories

Use FitFlow to determine your TDEE based on your stats and activity level. This is your calorie maintenance level.

2Create a Moderate Deficit

Subtract 300-500 calories from maintenance for safe weight loss of 0.5-1 lb per week. Avoid extreme deficits that cause muscle loss.

3Prioritize Protein Intake

Eat 1.6-2.2g protein per kg bodyweight to preserve muscle mass during the deficit. Scan meals with FitFlow to track protein.

4Add Resistance Training

Lift weights 3-4 times per week to maintain muscle. Muscle preservation keeps metabolism high during weight loss.

5Monitor Progress Weekly

Weigh yourself daily and use FitFlow's weekly average feature. Take progress photos monthly. Weight fluctuates — trends matter.

6Adjust Every 2-4 Weeks

If weight stalls for 2+ weeks, reduce calories by 100-200 or add 1-2 cardio sessions. FitFlow analytics show when to adjust.

Pro Tips

  • Aim to lose 0.5-1% of bodyweight per week for sustainable results
  • Eat high-volume, low-calorie foods like vegetables to stay full
  • Sleep deprivation increases hunger hormones — prioritize 7-9 hours
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