Saltar al contenido

Esta guía aún no está disponible en español, así que te mostramos la versión original en inglés.

How to Lose Weight Safely and Keep It Off

Safe, lasting weight loss comes from a modest, steady calorie deficit: eating a little less and moving a little more, so you lose about 0.5–1 kg (1–2 lb) a week. Focus on filling, nutritious meals with plenty of vegetables, protein and fibre, cut back on sugary drinks and snacks, stay active, and sleep well. Track your progress, avoid crash diets, and talk to a doctor before starting if you have a health condition.

Updated
Time
20 minutes
Difficulty
Medium

By Published Oct 9, 2026

Quick answer

  1. 1 Check with a doctor first if you have a health condition or take medicines.
  2. 2 Set a realistic goal: about 0.5–1 kg (1–2 lb) a week.
  3. 3 Eat a little less: smaller portions, fewer sugary drinks and snacks.
  4. 4 Fill up on vegetables, protein and fibre.
  5. 5 Move more: aim for 150 minutes of activity a week plus strength exercises.
  6. 6 Sleep 7–9 hours a night.
  7. 7 Track food, activity and weight once a week.
  8. 8 Think long term: build habits you can keep for life.
On this page
  1. Before you start
  2. Set a realistic goal
  3. Eat a little less, but well
  4. Move more
  5. Support your progress
  6. Troubleshooting
  7. Frequently asked questions

Before you start

  • A realistic goal
  • A way to track progress (notebook, app or scales)
  • Advice from your doctor if you have a health condition

Method 1 Set a realistic goal

  1. Step 1: Talk to a doctor if needed

    Get advice first if you have diabetes, heart disease, high blood pressure, an eating disorder history, are pregnant, or take regular medicines.

  2. Step 2: Know where you’re starting

    Measure your weight and waist. Body mass index (BMI) is a rough guide; waist size helps too, as fat around the middle carries more health risk.

  3. Step 3: Aim for steady loss

    Losing about 0.5–1 kg (1–2 lb) a week is safe and more likely to last. Even losing 5% of your body weight can improve blood pressure, blood sugar and joint pain.

  4. Step 4: Set habit goals too

    Alongside a weight target, set actions you control, like “walk 30 minutes five days a week” or “no sugary drinks”.

Method 2 Eat a little less, but well

  1. Step 1: Create a modest calorie deficit

    For most people, eating around 500–600 fewer calories a day than they use leads to steady weight loss. You don’t need to count every calorie; portion size and food choices do most of the work.

  2. Step 2: Fill half your plate with vegetables

    Vegetables are filling and low in calories.

  3. Step 3: Include protein at each meal

    Eggs, beans, lentils, fish, chicken, yoghurt and tofu keep you full and help protect muscle while you lose fat.

  4. Step 4: Choose high-fibre carbs

    Oats, whole grains, beans and fruit digest slowly and reduce hunger.

  5. Step 5: Cut liquid calories

    Sugary drinks, juices, specialty coffees and alcohol add a lot of calories without filling you up.

  6. Step 6: Use smaller plates and slow down

    Serve smaller portions, eat without screens, and stop when you feel comfortably full.

Method 3 Move more

  1. Step 1: Aim for 150 minutes a week

    Adults should aim for at least 150 minutes of moderate activity (such as brisk walking) a week, spread across several days.

  2. Step 2: Add strength exercise

    Do muscle-strengthening activities, such as body-weight exercises, resistance bands or weights, on at least two days a week.

  3. Step 3: Increase everyday movement

    Take the stairs, walk short trips, get off the bus a stop early, and stand up regularly if you sit a lot.

Method 4 Support your progress

  1. Step 1: Sleep 7–9 hours

    Poor sleep increases hunger and cravings.

  2. Step 2: Track simply

    Weigh yourself once a week at the same time, or use a food diary or app for a few weeks to learn your habits.

  3. Step 3: Plan for setbacks

    One big meal doesn’t undo your progress. Get back to your routine at the next meal.

  4. Step 4: Get support

    Tell friends or family, join a group, or ask your doctor about local weight management programmes.

Troubleshooting

My weight loss has stalled

Plateaus are normal. Review your portions and snacks, add more activity or strength training, and check your sleep. Waist measurements may still be shrinking.

I’m always hungry

Eat more protein, vegetables and fibre, drink water, and don’t cut calories too far.

I lost weight but put it back on

Focus on habits you can keep for life rather than short-term diets, and keep weighing yourself weekly so you can act early.

Frequently asked questions

Can I lose weight without exercise?

Yes, diet has the biggest effect on weight. But exercise helps you keep weight off and has many other health benefits.

Is it OK to skip breakfast?

It depends on what works for you. Some people do well with fewer meals; others overeat later. Choose a routine you can sustain.

How quickly will I see results?

Most people notice changes within 3–4 weeks of consistent habits.

Summary

Aim for steady weight loss of 0.5–1 kg a week through a modest calorie deficit. Fill up on vegetables, protein and fibre, cut sugary drinks, move for 150 minutes a week with strength exercise, and sleep well. Track progress weekly, avoid crash diets, and get medical advice if you have health conditions.

Written by

Dr. David Hoza

Medical Doctor (MD, MSc Radiology)

Dr. David Hoza is a Medical Doctor (MD) with a Master of Science in Radiology. He reviews OnlineHow’s health and wellness guides.