The phrase "as supplements" is correct and usable in written English.
It can be used when referring to additional items or materials that enhance or complete something else.
Example: "The report includes several case studies as supplements to the main findings."
Alternatives: "as additions" or "as enhancements".
Exact(59)
The treatments were level of PCH supplementation at 0, 300, 600 and 900 g DM/hd/d as supplements.
Both these substances are available as supplements.
But well-designed clinical trials found increased death rates among people who take them as supplements.
These outings are often available as supplements to other tours in Egypt.
These can be chemical drugs, or natural dietary compounds that can be used as supplements".
Nonetheless, water-soluble vitamins can be toxic if taken as supplements or in fortified food.
Many now use these resources as supplements to photography, video and painting.
Many of these products are classified as supplements, a category of food that is largely self regulated.
Over-the-counter and prescription pain relievers as well as supplements like glucosamine and chondroitin may offer relief.
He authored several best selling grammar and educational books that many schools used as supplements to their textbooks.
His disgrace was deepened when his enemies produced more libelous pamphlets dressed up as supplements to the Histoire.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com