Ascophyllum nodosum is usually well tolerated by pets with sensitive stomachs. There has even been some research into the gastrointestinal benefits that Ascophyllum nodosum can provide, likely due to its anti-inflammatory properties and prebiotics – see The Many Uses and Benefits of Ascophyllum nodosum.
However, each animal is different. Ensure that your pet’s gastrointestinal system is at its best before introducing Simply Seaweed. Introduce the product slowly, gradually increasing the dose as toleration is evident. Probiotics may help with transition.
If your pet is unable to tolerate Simply Seaweed, you can return the product for a full refund.