Answer:
Product substitute
Step-by-step explanation:
Product substitute is defined as one that meets similar needs of the consumer. As demand for one of such goods rises the demand of the other tends to fall as the meet similar needs.
In the given scenario organic meats are seen as being substituted by organically grown nuts as a source of protein.
So when Hain Celestial has dwindling sales of organic meats they were considering organically grown nuts as a different product to give to customers