08/24/2026
How to choose the right cod liver oil for your RCP journey!
Cod liver oil (CLO) is one of the foundational STARTs of the RCP - but not all CLOs are created equal. From price to purity, here’s what to consider when choosing a high-quality product:
🧪 Form matters
Look for unheated, minimally processed, and naturally sourced cod liver oil. The goal is to retain natural ratios of vitamin A (retinol) and vitamin D, rather than synthetic additives or isolated forms.
💰 Price vs. quality
Some cheaper options may seem appealing but are often molecularly distilled, highly processed, or contain synthetic vitamins. The better-quality CLOs are more expensive, but they’re worth it for nutrient integrity and effectiveness.
🌿 Purity and sourcing
We prioritize products tested for heavy metals and pollutants, ideally from clean, cold waters and companies that are transparent about sourcing and sustainability.
🛒 Not sure where to start?
The RCP Product Directory takes the guesswork out. Every listing is carefully vetted by trained RCPCs, with an emphasis on quality, nutrient density, and alignment with RCP principles.
👉 https://therootcauseprotocol.com/rcp-product-directory/?_sft_phases=start-10
Let the Directory be your trusted guide — so you can feel confident in what you’re taking and why.
▪ Note: Some products in the directory include affiliate links. When you purchase through these links, you’re supporting the RCP at no extra cost to you—and if a coupon code is available, you’ll receive a discount too.