But if you're a fan of a home workout with your favourite TV star, do any of the options on offer provide a realistic way of getting in shape,
Emily Anger, a personal trainer at Ultimate Performance Fitness, has analysed five popular titles for Femail to see how they stack up, and claims that some include workouts that are far too short to be effective while at worst, others could lead to injury.
'Initially, there may be a strength increase when someone tries a new sport or form of exercise like these DVDs, but if the demand on the body does not increase over time, the adaptations will stop after a while and results will likely plateau,' she explained.
'As there's no coach there to teach proper technique, there's the real possibility you will perform the exercises wrong - particularly for beginners - which can lead to dysfunctional movement patterns.
'Furthermore, the DVDs utilise a very high-pace style of exercise which include a number of plyometric (ballistic) movements, which if done incorrectly, can put anyone at a greater risk of injury.
TV star Scarlett Moffatt last month faced accusations that her 2016 exercise DVD was a 'sham' after she reportedly went to a strict Swiss bootcamp to lose weight
This risk is also increased as you get more fatigued from the fast-paced workout.
The positives of these kinds of DVD workouts is that they're time-sparing and can be done at your convenience at home. They're often fun and easy to access for people new to fitness.
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However, the negatives are that the emphasis is on weight loss, rather than fat loss which is what most women really need if they want to improve their body composition.
There is also a higher risk of injury following these kinds of workout, and they are not tailored to the specific individual's needs, competencies and goals.
MailOnline has contacted the stars whose workouts were assessed below for further comment.
Scarlett's SuperSlim : Workouts 'too short'
Scarlett Moffatt's 'fat burning' workouts may not be long enough to be effective
The workouts are based on seven different 'fat burning' workouts between five to seven minutes each based on plyometric and aerobic exercises.
While you'll probably get out of breath when you first start, the body quickly adapts to this type of workout.
Doing a few minutes' worth of aerobic exercises four times a week, as instructed in the plan, will hardly get anyone burning 100 extra calories per day.
The focus here, with the other workouts, seems to be on general weight loss, rather than losing fat and building muscle, which is going to give women the 'toned' look they want.
Getting in shape and losing fat requires a real and consistent focus on nutrition and being active all day, not just for seven short minutes.
Natalie Cassidy's Then & Now Workout: Risk of injury
This is a very basic dance choreographed-based workout, which will definitely get a beginner sweaty. There’s a low skill requirement to doing this workout, which is a positive and no equipment is needed, and the moves aren’t overly complicated, so it could be a good entry point for overweight people to start getting active.
I can imagine it would be more enjoyable for most than the equivalent time spent jogging.
Any aerobic exercise like this will definitely improve cardiovascular health and fitness and could boost your mood.
However, the risk of injuring knees or ankles with some of the more complex twisting movement, which people may be doing in their living rooms, is a real concern, and the exercises, which involve a lot of jumping movements, may not be advisable for anyone with joint or mobility issues.
The main issue with this workout DVD is that there’s no proper instruction on proper technique or movement, so you won’t learn how to squat or lunge properly because the workout priorities speed and intensity.
Emily fears there is a risk of injury from some of Natalie's choreography based routines
Vicky Pattison: 7 Day Slim: Moves could do 'more harm than good'
This is a more advanced 10-minute aerobic workout. It contains a lot of plyometric exercises and more difficult moves that not only aren't effective, but could potentially do more harm than good.
While any exercise and activity is better than nothing, you have to consider that this totals little over an hour of exercise a week.
If you are only doing 10 minutes of activity a day, and not controlling your calorie intake, this will make little difference to weight loss.
Working with clients at Ultimate Performance, we recommend an absolute minimum of three hours of progressive resistance training a week to make considerable and measurable changes to body composition.
You would certainly feel fitter from getting 10-minutes of aerobic exercise every day, but don't expect miracle fat loss or seven-day abs from the core exercise section, if you are not following a structured, calorie-controlled diet alongside it.
There are progressions in this workout for beginners and advanced trainees, but many of the moves would still be quite complicated for beginners to master properly.
There is something to be said for doing the basics correctly, perfecting form, and following a principle of progressive overload with your training for fat loss and body composition.
Some of the difficult moves in Vicky Pattison's fitness offering may not be effective
Nadia Sawalha: Misleading terms
This is another inspirational woman who has managed to lose weight. She is pushing an aerobic workout which will inevitably make women sweat.
But she repeats the phrase 'burn the fat' during the workouts, which is misleading.
Why, Because it takes away from the immutable fact that you need to be in a calorie deficit to be able to burn fat or lose weight.
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