The phrase "as a downside of" is correct and usable in written English.
It can be used to introduce a negative aspect or disadvantage related to a particular situation or decision.
Example: "The new policy has many benefits; however, as a downside of its implementation, some employees may feel overwhelmed by the changes."
Alternatives: "as a drawback of" or "as a negative aspect of".
As a downside of this nervous condition, the octopus has a poor concept of its overall position in space.
All respondents mentioned floods as a downside of where they lived, and everyone had experienced the consequences of seasonal floods firsthand.
An aspect that is commonly presented as a downside of the introduction of mobile devices in the classroom is the possibility of students engaging in multitasking behaviors with (and within) said devices.
As a downside of the method, routes through such metabolites will be penalized.
Mineralocorticoid receptor blockers reduce sodium and water reabsorption, but as a downside of this action the potassium excretion is reduced causing hyperkalaemia.
By contrast it has been suggested that Murray, as a downside to his admirable strength of character, is more likely to go in the opposite direction if presented with criticism too directly.
A downside of using git as a database is that it does not provide a way to perform fast lookups of arbitrary information in the data store.
A downside of being in jail, as opposed to prison, is that people are not allowed to receive packages, hence no one could send me anything to read.
A downside of using the placenta as a biomonitoring matrix, is that it may be difficult to collect representative samples.
As a downside, the level of heterogeneity of the test groups was low, since most subjects shared similar levels of knowledge and technical background.
Upon its release, the received positive reviews from critics who praised its track list featuring the band's most popular songs; however some of them noted the lack of new material as a downside.
