Just 50gms of seasweed can provide several hundred times the amount of recommended daily iodine, just be very aware of this.
taken from another forum
"KellyP Seaweed - how much do you feed?
I'm hoping someone can help me figure it out....
I feed seaweed at 100g/day, per manufacturers recommendations (Crossgates Bioenergetics), and the two ladies I stable with have done so for years.
The 'typical' iodine content of the product is apparently 0.292g/100g seaweed.
Can someone with more brains than me PLEASE tell me what that is in mg/kg or ppm? I seem to get it at 2920mg/kg, which would mean I'm giving Jack about 500 times what a horse is supposed to require.
Or put another way, a 500kg horse is supposed to require 1-2.5mg iodine/per day. I seem to be giving Jack 292mg/day.
Is it my conversion factors that are off, or am I slowly poisoning him?
FWIW, Farriers Formula contains 4.8mg/kg, and Formula for Feet has 6mg/kg.
And why do we feed seaweed? The research I've read shows that, at levels low enough to avoid iodine toxicity, the levels of trace elements and minerals are so low as to be almost negligible.
I hope someone can help - this is an argument that wanders round in my mind every so often, and I haven't come across anything to put it to rest yet Ali
Your calculation is correct - 0.292 g/100 g equates to 2.92 g or 2920 mg/kg
100 g sounds a lot of seaweed? I fed it as part of SS Total Eclipse and am only feeding 150 g/day TE. "