The amount of cardio you do will depend on a variety of factors including your overall goals, current health status and how much time you have to devote to exercise.
As a baseline, the Physical Activity Guidelines for Americans state adults should do at least 150 minutes to 300 minutes of moderate-intensity (30 to 60 minutes, five days a week), 75 minutes to 150 minutes a week (15 to 30 minutes, 5 days a week) of vigorous-intensity aerobic physical activity or an equivalent combination of both.
If your primary goal is weight loss, certified personal trainer, Katrina Pilkington NASM-certified personal trainer, recommends going beyond these minimums, aiming for 45 to 60 minutes of exercise a day, five days a week, along with a healthy, reduced-calorie diet, of course.
Beginners may want to start even more slowly with two to three cardio sessions a week to avoid burnout or injury. Or you might even try interspersing 10-minute bouts of cardio (like walking) into your daily routine and watch the minutes add up.