The phrase "a supplement rather than" is correct and usable in written English.
You can use it to indicate that something is an addition or enhancement instead of a replacement or primary option.
Example: "The new software update serves as a supplement rather than a complete overhaul of the existing system."
Alternatives: "an addition instead of" or "a complement rather than".
In particular, our study only considered information regarding the last recorded dose of vitamin A supplement rather than a child's history of supplementation.
What's on offer is a supplement rather than straightforward enhancement: an act of layering and addition.
(Citi Bike, therefore, could serve as a supplement, rather than a replacement).
But it will be a supplement, rather than a corrective, to the demand for ever-more-expensive medical interventions that Wolff's article laments — a minor accompaniment to the major theme of life extension by any means and at any cost.
Perhaps more significantly, they have begun a public campaign to redefine their methods as a form of care that the broader public should consider as a supplement rather than a substitute for conventional treatment, like biofeedback, chiropractic or homeopathic care.
A few months later it had to withdraw as the financial crisis engulfed it.A fitter fund?The idea of an Asian Monetary Fund has not gone away, but even its proponents now see it as a distant dream, and as a supplement rather than an alternative to the IMF.
To this day, stevioside can only be sold in the US as a dietary supplement rather than a sweetener, even though it's now "generally recognized as safe" by the FDA and enjoys similar approval from the World Heath Organisation (pdf).
Flaxseed or flaxseed oil is also a good source of ALA [ 17] but is often consumed as a dietary supplement rather than a part of the regular diet.
Then, write a comparison article exploring those similarities and differences, and offering an analysis of why The New York Times newspaper includes a magazine supplement, rather than simply including those articles in the newspaper itself.
Again, we have opted to include these analyses in a figure supplement rather than within the main manuscript as we believe they do not enhance the narrative.
Her conclusion: "Perhaps it will be a better weight-loss supplement rather than a cure for dementia".
