{"product_id":"doctors-best-l-arginine-sustained-plus-immediate-release-500-mg-120-tabs","title":"Sustained Plus Immediate Release L-Arginine","description":"\u003cp\u003eSustained Plus Immediate Release L-Arginine from Doctor's Best® delivers the amino acid in a bilayer tablet, with two tablets providing 500 mg of sustained release and 500 mg of immediate release L-arginine. This formula allows for enhanced blood levels of this nutrient. Sustained Plus Immediate Release L-Arginine tablets are specifically manufactured to immediately increase blood levels of L-arginine and then to sustain this beneficial increase continuously over an 8-hour period. L-arginine has been shown to support the cardiovascular system, promote heart function and enhance healthy circulation throughout the body through its conversion to nitric oxide. Research suggests L-arginine supplementation may also have positive benefits on athletic performance. Vegan. Non-GMO. Gluten free.\u003c\/p\u003e","brand":"Doctor's Best","offers":[{"title":"Default Title","offer_id":46318756724874,"sku":"DB113","price":20.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8139\/0474\/files\/68f5fc96-07e8-437a-9bd0-1d2a491811ff_large_391c2e8c-c01f-44db-ae0b-8cf95bebf22d.jpg?v=1767382402","url":"https:\/\/www.swansonvitamins.com\/products\/doctors-best-l-arginine-sustained-plus-immediate-release-500-mg-120-tabs","provider":"Swanson Vitamins","version":"1.0","type":"link"}