هل عشب البحر هو نفس السبيرولينا؟

Is kelp actually the same as spirulina, or are they two distinct organisms with unique properties? I've heard that both kelp and spirulina are algae and have similar nutritional benefits, but are they interchangeable? Kelp is known for its rich mineral content, while spirulina is praised for its protein content. Could someone clarify the difference between these two algae and explain why they might be used differently in dietary supplements or culinary applications? Understanding their unique characteristics would help me make informed decisions about incorporating them into my diet.