The kelp vs seaweed debate is pretty hot today, since both kelp and seaweed are popular as food, snacks and supplements.
So, how do they differ?

(This page contains affiliate links, meaning we may get a small commission if you buy something, at no additional cost to you).
Seaweed VS Kelp – Key Differences?
Kelp actually is a type of seaweed, so in that sense they both have a lot more in common, rather than not.
But as for what differentiates them:
1. Kelp Belongs Among Brown Seaweed
Seaweed in general though can belong to 3 different ones however, brown, green and red.
2. Kelp Is A Lot Higher In Iodine Than Seaweed
This, its iodine content, is why I consider it such a superfood, and why it’s also on my recommended supplements list.
You don’t need much of it for a good dose of energy, try this powder, Now Kelp Powder, if you need a supplement.

And then:
3. Kelp Is Large
Seaweeds can vary a lot in size in between them, with kelp always being quite large.
4. They Grow In Different Environments
Kelp’s usually found in rocky coastlines and salt water, while seaweeds in general can grow in any marine environment, including rivers, lakes and oceans.
5. Their Health Benefits Vary

Kelp is healthier, but only needed in low amounts. This ties back with the iodine, since kelp’s so rich in it.
For maximum health benefits, make sure you eat some kelp on the regular, or a little bit daily in supplement form, since it doesn’t take much at all.
Read More: Kelp Seaweed Benefits And Side Effects (Body, Skin, Hair), The Top 3 Best Sea Kelp Supplements (Powder, Pills, Cheap), What Does Kelp Seaweed Taste Like?

Wrap-up
So, kelp (a seaweed), is not the same as just seaweed in general, and their biggest difference, in my opinion, is that kelp contains a lot more iodine.
Kelp is a superfood and highly recommended as a supplement to up your iodine intake.
All said and done.
/Emil