Seven Seas Max Strength + Vitamin D Review
Seven Seas · Last updated 1 June 2026
Trust Checklist3/6 passed
IFOS or MSC Certified
Not IFOS/MSC certified
Triglyceride Form (better absorbed)
Form not clearly stated
Oxidation Tested
Not publicly documented
Sustainable Sourcing
Responsible sourcing claims
High EPA+DHA per serving
1063mg per capsule
Low-Mercury Source
Purified fish oil
Rating Breakdown
Pros & Cons
Pros
- Established UK heritage brand — high trust
- Added Vitamin D3 for synergistic heart and bone health
- Single daily capsule convenience
- Cheapest per capsule of our top picks
- Widely available on the high street
Cons
- Less detail on third-party testing than Inessa or Sports Research
- Form (triglyceride vs ethyl ester) not always clearly stated
- Not IFOS certified
Product Details
- Form
- Capsule (with Vitamin D3)
- Dosage per Serving
- 1250mg fish oil (1063mg EPA+DHA)
- EPA+DHA
- 1063mg EPA+DHA
- Serving Size
- 1 capsule
- Servings per Container
- 60
- Price
- £9.99
- Price per Serving
- £0.17
- Other Ingredients
- Vitamin D3, Capsule shell (gelatin)
- Certifications
- Made in UK
Full Review
Ingredient Quality
Seven Seas is one of the UK's most recognised omega-3 brands, which brings genuine trust. This Max Strength version adds Vitamin D3 — synergistic for heart and bone health — and delivers a high EPA+DHA figure. The main gap versus premium picks is less published detail on third-party testing and oil form.
Value Analysis
At £9.99 it's the cheapest per capsule of our top picks and available on every high street. For a trusted brand with added Vitamin D, that's strong value.
Effectiveness
High EPA+DHA plus Vitamin D in a single daily capsule covers a lot of bases. It's effective and convenient; it just doesn't carry the IFOS/MSC certifications or the documented triglyceride guarantee of the top two.
Who Is This Best For?
Shoppers who want a trusted high-street brand, added Vitamin D, and easy availability without paying a premium.
Where to Buy
Prices are approximate and may vary. As an affiliate, we may earn a commission from qualifying purchases at no extra cost to you. This does not influence our reviews or rankings of Seven Seas Max Strength + Vitamin D.
Seven Seas Max Strength + Vitamin D FAQ
Why add Vitamin D to fish oil?
Vitamin D and omega-3 work synergistically for heart and bone health, and many people in the UK are deficient in Vitamin D — especially in winter. Combining them in one capsule is convenient and covers two common needs at once.