Do you need cardio to loose weight?
No, you do not.
In fact, as a weightloss expert that has advised more people than I can count as well as providing permanent weightloss solutions that have nothing at a all to do with exercise OR diet (old news, that whole diet and exercise thing), I will, in May cases, ban a person from the gym or exercise except for casual walking outdoors, until they are adhering to some much more fundamental and important things. I have written about these on other q and a sites and will expand on them when people start asking specific questions.
E-GO 2018
To the question in your title, my Magic 8-Ball says:
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