Dear Anita: Tthe kelp or spirulina are for micronutrient and trace minerals; the iodine in kelp can also stimulate the adrenals and it adds a slightly salty taste. If you don't have a health food store in your area, you should be able to find spriulina in the supplements for humans section of a supermarket or pharmacy...it is a blue/green algae.
It would be best if you can find some, but if you can't, make a batch without it to start...most of the nutrients will be better than none. You may be able to find it from an online source...try KV Vet Supply (www.kvvetcom) or Only Natural Pet! www.onlynaturalpet.com Sally in San Jose
