Cycling to lose weight: what the evidence shows, and how to ride for results

What cycling does for your health

The health case for cycling is solid. In UK Biobank, a study of 263,450 adults led by Celis-Morales and published in the BMJ, people who cycled to work had a 41% lower risk of death from any cause over about five years than those who commuted by car or public transport. They also had a lower risk of cardiovascular disease and cancer. The Oja review, covering 16 studies, found consistent improvements in fitness and some cardiovascular risk factors with cycle commuting, and a dose-response gradient: more cycling, more benefit.

These are strong reasons to ride. They are not, on their own, proof that cycling makes people slimmer.

Why the fat-loss results are mixed

The Oja review graded the evidence on overweight and obesity as inconclusive. The Wewege meta-analysis, which compared interval and steady training in adults with overweight or obesity over about ten weeks, found large reductions in fat mass with running but none with the cycling programmes it included.

Several explanations are possible, and the studies do not settle them. Short programmes, modest volumes and the fact that pedalling on a flat road at an easy pace uses relatively little effort all play a part. The practical lesson is that a gentle 20-minute ride three times a week is good for the heart, but rarely enough to change body weight. Volume and intensity have to rise, and eating has to change too.

How hard to ride

The CDC gives a simple benchmark: cycling slower than 10 miles an hour (about 16 km/h) on level ground is moderate activity; faster than 10 miles an hour is vigorous. On an indoor bike, speed means little, so use effort instead.

• Moderate: you can talk but not sing. This is where most of your riding should sit.
• Vigorous: you cannot say more than a few words without pausing for breath. Useful for short intervals once you are fit.

The calculator on this page gives your zone 2 heart rate range, estimated from your age and resting pulse. For many people, staying in that range on a bike is easier than when running, because there is no impact and you can adjust the resistance at will. See zone 2 heart rate for why it is a good base.

How much to ride for weight loss

The American College of Sports Medicine position stand, led by Donnelly, gives the most useful figures:

• 150 to 250 minutes a week of moderate activity gives a modest weight loss on its own;
• more than 250 minutes a week is associated with clinically significant weight loss;
• combined with a moderate diet, 150 to 250 minutes a week improves the loss.

Cycling makes these volumes reachable. Two 20-minute commutes a day on four days already give 160 minutes. Add a longer ride at the weekend and you pass 250.

A weekly plan for beginners

This is an example to adapt to your starting point and your bike, indoor or outdoor:

1. Weeks 1 and 2: three rides of 20 minutes at a moderate effort.
2. Weeks 3 and 4: four rides of 30 minutes, or a cycle commute on some days.
3. Weeks 5 to 8: four or five rides of 30 to 45 minutes, including one of 60 minutes or more.
4. From week 9: replace one ride with intervals, for example six to eight efforts of one minute hard, one or two minutes easy. Our guide to HIIT vs cardio explains when this helps.

Add two short strength sessions a week. Cycling builds endurance in the legs but does little for the upper body, and the American College of Sports Medicine notes that strength training may increase lean mass and fat loss.

Practical points

• Set the saddle height so that your knee is slightly bent at the bottom of the stroke; a saddle too low strains the knees.
• Indoor bikes are a good start for anyone with a higher body weight, little confidence on the road or a busy diary.
• Commuting counts. It is often the easiest way to add volume without finding new time.
• Watch the post-ride snack. It is easy to eat back what a ride used. Our guide to calorie needs helps you plan food around activity.

For more on choosing between cycling, walking and swimming, see the best sports for weight loss.

If you have heart disease, high blood pressure, diabetes, joint problems or a high body weight, or have not exercised for a long time, check with your doctor before you start. Stop and seek medical advice if you feel chest pain, dizziness or unusual breathlessness on the bike.

Ride with a crew on Never Skip Club

Weight comes off when activity becomes a weekly habit, not a summer project. Create your free account on Never Skip Club and add guided strength sessions of 20 or 30 minutes to your rides, at home or in a hotel, to balance the work your legs already do. Start a crew of three to seven friends with a shared rhythm, for example four sessions a week for three months: the ranking rewards regularity, not distance. If you want an expert to build your plan, find a coach from our network, or sign in to your account.