Arosep (Seaweed Salad) – The Ilocano Favorite Also Known as Sea Grapes

The Seaweed Arosep

In Ilocano, we call it Arosep, but you might also know it as latô, umi-budō, green caviar, or sea grapes. Scientifically named Caulerpa lentillifera, this seaweed is native to coastal regions of the Indo-Pacific and is prized for its soft, succulent texture.

In the Philippines, Arosep is often enjoyed as a simple salad, while in Japan’s Okinawa it’s called umi-budō (海ぶどう), meaning “sea grapes,” and in Sabah, Malaysia, it’s a popular dish known as latok.

Health Benefits of Arosep

Arosep isn’t just delicious—it’s packed with nutrients. Studies have shown that Caulerpa lentillifera may offer:

• Rich Iodine Content – supports thyroid health

• Lipid-lowering properties – may help regulate cholesterol

• Diabetes management benefits – linked to improved blood sugar control

This makes Arosep both a flavorful snack and a healthy addition to the Filipino diet.

Where to Buy Arosep

In Manila, Arosep can sometimes be found in local wet markets like Bicutan Public Market, though it may come at a higher price and not always be freshly harvested.

In my hometown, Sta. Cruz, Zambales, Arosep can be bought for as low as ₱70 per kilo—or even free during peak season in barangays like Bolitoc.

How to Prepare Arosep (Seaweed Salad)

One of the best things about Arosep is its no-cook preparation. Here’s how to make it:

Ingredients:

• Fresh Arosep (seaweed)

• 1–2 tomatoes, chopped

• 1 small white onion, chopped

• Fish bagoong or alamang (shrimp paste)

• Vinegar

Steps:

1. Wash Arosep quickly in clean seawater or lightly rinse in fresh water (avoid soaking).

2. Mix with tomatoes and onions.

3. Dress with bagoong and vinegar.

4. Serve fresh as a salad or side dish.

Storage Tip: Do not soak Arosep in fresh water and avoid refrigerating. Store in a plastic bag at room temperature, and it will last up to two days.

FAQs About Arosep

Q: What does Arosep taste like?
A: It has a refreshing, slightly salty ocean flavor with a satisfying “pop” when eaten fresh.

Q: Can you cook Arosep?
A: Traditionally, no—it’s eaten raw as a salad to preserve its texture.

Q: Is Arosep good for health?
A: Yes, it’s nutrient-rich, low in calories, and may help with cholesterol and blood sugar management.

Q: Where is Arosep most common in the Philippines?
A: It’s widely harvested in coastal provinces like Zambales, Ilocos, and Palawan.