Write the next sentence in this paragraph:

How to best absorb grapeseed extract
Purchase a supplement that includes ingredients that are 80 percent proanthocyanidins.
This level ensures your supplement will provide activity within your body that results in antioxidant behavior. Antioxidants are used to improve many body functions, including heart health.

Pick from:
a). You should avoid products with extra-concentrated proanthocyanidins because they are high in oxidation and negative of adding essential vitamins to your diet. Instead, make your own concentrated or instant high-fructose corn syrup.;
b). The less proanthocyanidins in your supplement, the better you'll be at absorbing them. Whole grain products may not provide the maximum amount of proanthocyanidins, such as seafood, breads, wheats, rice, and corn.;
c). Consume the grapeseed extract with your other vitamins or supplements that you already take. Grapeseed extract is known to work well with other natural supplements and vitamins to enhance their effectiveness in your body.;
d). It is very important to note that melatonin withdrawal isn't permanent, so reducing dosage may help you overcome this condition. Begin taking your supplements if you experience dizziness, nausea, constipation, muscle pain or numbness in your legs or arms.;
c).