Guide
Fish oil and vitamin C
Fish oil and vitamin C are often taken together, and there's no documented interaction between them. Each supplies something different — omega-3 fats from one, a water-soluble vitamin from the other.
Yes — fish oil and vitamin C are commonly taken together, and there's no documented interaction between them. Fish oil supplies EPA and DHA, two omega-3 fatty acids, in a fat-soluble softgel; vitamin C is a water-soluble vitamin with its own separate, well-established role. Taking them at the same time or apart hasn't been shown to change what either one does.
Why they're often paired, and what each actually is
Fish oil and vitamin C show up together in a lot of daily routines — often in the same multivitamin-plus-omega-3 stack — because both are common general-purpose supplements, not because a trial has tested the combination against either one alone. Our softgel supplies 180 mg of EPA and 120 mg of DHA from 1,000 mg of fish oil concentrate. Vitamin C is water-soluble and has an adult Recommended Dietary Allowance of 90 mg/day for men and 75 mg/day for women, according to the National Institutes of Health Office of Dietary Supplements, with a tolerable upper intake level of 2,000 mg/day from supplements. It's a different nutrient class entirely — a water-soluble vitamin, not a fat.
Does fish oil contain vitamin C?
No. Our panel lists fish oil concentrate, EPA, DHA and vitamin E — no vitamin C or other water-soluble vitamins. The vitamin E in our softgel is there as an antioxidant to help protect the oil itself from oxidation; it isn't a substitute for vitamin C, which plays a different role in the body and isn't part of a fish oil supplement unless a brand specifically adds it, which ours does not.
What actually matters if you're taking both
- Absorption pathway. Vitamin C is water-soluble; the omega-3s in fish oil are fat-soluble and are better absorbed with a meal that contains some fat. Taking vitamin C alongside fish oil doesn't change how either is absorbed — they use different pathways.
- Timing. Neither has an established requirement to be taken with or apart from the other. Fish oil is commonly taken with meals, which can reduce the fishy aftertaste some people notice; vitamin C doesn't have a comparable timing requirement.
- Checking for overlap. "Fish oil zinc vitamin c" style combination products bundle several ingredients into one softgel or capsule. If you're taking a multivitamin or an immune-support blend, check whether it already includes vitamin C before adding a separate bottle.
Questions people ask
Can you take omega-3 and vitamin C together?
Yes. There's no documented interaction between fish oil and vitamin C at typical supplement doses.
Does fish oil have vitamin C in it?
No. Fish oil concentrate is fat and omega-3 fatty acids. Our panel adds only vitamin E as an antioxidant — no vitamin C, unless a specific product is formulated to include it.
Should I take fish oil and vitamin C with zinc too?
Zinc, vitamin C and fish oil are three separately regulated nutrients with three separate label directions. Taking all three is a matter of checking your total intake of each against its own upper limit, not a documented interaction between them.
Our product
Electric Tiger Omega-3 is fish oil concentrate only: 1,000 mg per softgel, providing 180 mg of EPA and 120 mg of DHA, one softgel twice daily, as low as $16.79 a bottle on subscription. No added vitamin C or other vitamins. Full panel here.
Sources
- National Institutes of Health, Office of Dietary Supplements. Vitamin C Fact Sheet for Health Professionals.
- Electric Tiger Omega-3 Supplement Facts: product page.
Related reading: what is fish oil, fish oil and magnesium, and how much fish oil should you take a day.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
