Two more practical omega-3 questions: what's the difference between fish oil and algae omega-3, and when's the best time to take it? This guide covers sourcing and usage honestly — with authorised claims stated correctly and no overreach.
For transparency: EPA and DHA carry authorised UK claims at specific intakes (heart: 250mg EPA+DHA; brain and vision: 250mg DHA). This article is about source and usage, and applies that wording accurately.
Fish oil vs algae omega-3: what's the difference?
Both deliver the long-chain omega-3s EPA and DHA, but from different sources:
- Fish oil — derived from oily fish. It's the traditional, well-studied, and typically most cost-effective source of EPA and DHA. Our Omega-3 is a high-strength fish oil.
- Algae omega-3 — derived from marine algae (which is, in fact, where the fish get their omega-3 in the first place). It's the vegan and vegetarian option, providing DHA and, in some products, EPA without using fish.
Honestly: for most people who eat fish or have no objection to it, fish oil is the established, economical choice. Algae omega-3 is the genuinely useful option for vegans, vegetarians, and those who dislike fish or fish-oil aftertaste. Neither is inherently "better" — it depends on your diet.
When is the best time to take fish oil?
The practical guidance here is simple and claim-free:
- With a meal containing fat — omega-3s are fat-soluble, so taking fish oil with food that has some fat supports absorption and tends to reduce any fishy repeat.
- Any time of day — there's no proven "best" time; morning or evening is fine, as long as it's with food.
- Consistency — daily, regular intake is what matters, since the authorised roles relate to maintaining normal function over time.
How do you reduce fishy aftertaste?
A common practical gripe. Taking fish oil with food, and choosing a fresh, good-quality oil, both help. Some people keep their capsules in the fridge. A quality, properly stored fish oil shouldn't taste strongly — a strong fishy repeat can be a sign of an oxidised or lower-quality oil.
How do you choose a good fish oil?
Read the EPA and DHA content (not just total oil weight — see EPA vs DHA and how much), check it's tested for purity (oily fish can concentrate contaminants, so purity testing matters), and pick a strength that delivers a meaningful daily amount without needing a handful of capsules. Ours is made in a GMP-certified facility and tested for purity.
The takeaway
Fish oil is the established, economical EPA/DHA source; algae omega-3 is the vegan/vegetarian alternative; take either with a fatty meal at any consistent time; and choose on EPA/DHA content and purity testing. For the amounts and the authorised claims, see EPA vs DHA; for the full picture, our omega-3 guide.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication (including blood thinners) or managing a medical condition, speak to your GP or pharmacist before starting a new supplement. Signed, Dr. Miron, Founder of Pure Vitamins UK.
