Is it necessary to workout 6 days a week to loose weight

The more you move the better. You don't have to go hard every day since muscles need time to recover. But with conditioning and good muscle recovery strategy, 6x/week is possible. Beware getting burnt out and derailing yourself though.

Yup

Exercise is not necessary to lose weight. A calorie deficit is.


That being said, you should still exercise.

^this

The real question is can you hit your calorie goal 7 days a week? When it come to exercise, unless you are getting overuse injuries, it is doubtful that 6 days a week is too much. The average 30 minute workout is usually 300 or so calories. That's like one cookie a day for the days that you workout. Even if you workout 60 minutes a day, you are still getting 2 cookies.

Get the food under control, and then eat back some of your exercise calories.

I use the weight circuit 2 days a week; bike, skate or rollerblade one day, and run the other 3 for 1 to 2 hours.

Eat at a (healthy for you) deficit to lose weight. Lift weights to look good and preserve LBM.

I lift 3x per week with minimal cardio, maybe 10 minutes of HIIT 1-2x per week following lifting.

Based on the intensity of the exercise, the American College of Medicine recommends 150 to 250 minutes of exercise/moderate activity per week, or 1500 to 2500 calories expended in exercise.

You can do the math.

Other studies have suggested that exercising 5 days a week results in much greater success than 3 days a week. Part of that is due to the fact that most overweight beginners are not that fit and so they need to do a higher volume of exercise to help sustain a calorie deficit.

New research has shown that "between 150 and 250 minutes per week of average strength exercising is effective in avoiding excess body weight greater than 3% in most adults but will provide "only modest" losing excess weight.