Brisk walking in 30 minutes will make you slim.

 Your diet

If you add 30 minutes of brisk walking to your daily routine, you can expect to burn more than 100 calories a day. For even better results, you can try intermittent jogging or running for 5 minutes after every 15-minute walking session.

With a good exercise routine and restricting your calorie intake, you can lose 1-2 pounds per week. Before embarking on a weight loss program, however, make sure to talk to your doctor, certified nutritionist, or fitness expert, as they can help you achieve safe and effective weight loss. This is especially important if you have underlying health conditions such as heart disease.

How much to walk to lose weight

Duration

If you walk briskly for 30 minutes, you should be covering 1.5-2 miles.

Walking comes under the moderate-intensity exercise category, so you should aim to walk anywhere between 30-90 minutes. Make sure that the total duration of walking is not less than 150 minutes a week to derive maximum benefits.

If you are new to walking, you can start walking for maybe 10 minutes a day and gradually build up to longer periods.

Speed

Your walking speed should be fast enough to make your heart rate reach up to 70% of your maximum heart rate. You should be breathing harder than usual. Fitness bands can be helpful, as these can monitor your heart rate and show you whether you are exercising at the right intensity level. 

Consistency

If you want to make walking a daily part of your fitness plan, be consistent. Do not skip walking for more than a day in a row. 

On days when you are unable to go walking, try doing strength training exercises or jumping rope at home. Resistance training is an effective way to lose weight as it helps you build more muscles and just burn more calories. Jumping rope or other similar aerobic activities can burn 2-3 times the amount of calories as walking for the same amount of time.