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Ghost Fitness/Omega-3/Can I take Fish Oil with zinc?

Can I take Fish Oil with zinc?

By George Thomas. Published 23 December 2026, updated 23 December 2026. Label figures and prices checked on the update date.

The short answer

Yes, and the two want the same meal for different reasons: zinc nauseates on an empty stomach, so it goes with food, and an ethyl ester fish oil absorbs several-fold better with fat, so it goes with the fattiest meal, the same dinner for most. They interact in no direction. The men's pairing rests on zinc's testosterone-maintenance sentence and fish oil's heart sentence, each maintenance rather than a boost. Zinc is kept under 25mg.

  • The interactionnone: a fat and a mineral on different routes
  • Why both want dinnerzinc nauseates fasted; an ethyl ester fish oil absorbs several-fold better with fat
  • The men's-pair sentenceszinc: maintenance of normal testosterone, fertility, immune function; fish oil: normal heart function at 250mg
  • The zinc line10 to 15mg by audit; under 25mg a day, the copper line
Futuro Labs Omega 3 Fish Oil, 90 mini softgel bottle

Our brand: the worked example on this page

Futuro Labs Omega 3 Fish Oil

  • 17p a day
  • 90 softgels, 1 softgel daily
  • Lab tested
  • Made in the UK

View on Amazon UK, £14.99 Full label breakdown

The fish oil half of the pair, at the dinner both want: Futuro Labs Omega 3 Fish Oil on Amazon UK, 1 softgel with food, 180mg EPA and 120mg DHA, 90 for £14.99 at 17p, with a separate 10 to 15mg zinc beside it by audit. Full label breakdown. The three-tub version is on the omega-3, magnesium and zinc page; zinc's claims on the daily zinc and magnesium page.

Yes, no interaction, and the two reasons the two tubs want the same meal

Can I take fish oil with zinc is answered yes, the two interacting in no direction, a fat absorbed with the meal's fats and a mineral absorbed by its own transport, zinc's real interactions being with the chelating antibiotics, high-dose iron and copper rather than with an oil, and the more useful answer is that the two want the same meal for two different reasons. Zinc wants food because it nauseates without it: 15mg or more of zinc in an empty stomach is the reliable route to the nausea, queasiness and small-hours upset that the ZMA pages trace to the classic fasted-bedtime protocol, and a zinc tablet with a meal produces none of it, so zinc's place is a plate. Fish oil wants fat because it absorbs better with it: an ethyl ester fish oil, which many standard oils are, absorbs several-fold better with a high-fat meal than fasted, a triglyceride oil a little better, and both burp less when taken with food rather than before it, the absorption literature's finding and the fat-soluble shelf's rule, so fish oil's place is the day's fattiest plate. For most lifters both plates are the evening meal, so the pair goes with dinner, one softgel and one small tablet, and a reader who eats a fatty breakfast can take both then instead, the meal and not the hour being what each needs.

The men's-pair folklore audited, zinc's line, the audits, and the pair filed

The pairing is sold to men, and the men's-pair folklore audits to two real sentences and no boost. Zinc's sentences: a contribution to the maintenance of normal testosterone levels in the blood, to normal fertility and reproduction, to normal immune function and to the maintenance of normal skin, hair and nails, each authorised at 15% NRV or more and each a maintenance claim, meaning that adequate zinc keeps a man's testosterone and fertility where his physiology puts them and that a shortfall lowers both and repletion restores them, the zinc-and-reproduction literature's finding, with no rise above a man's own normal from any dose and the word boost unprintable. Fish oil's sentence: EPA and DHA contribute to the maintenance of normal heart function at 250mg a day, a maintenance claim reached by one standard softgel, with the sperm-quality file for omega-3 being small trials in men with poor parameters and no claim, the man's omega-3 page's grading. Two real maintenance sentences, then, and a folklore that adds them into a testosterone-and-vitality story neither supports. Zinc's line: dosed by audit, 10 to 15mg a day for a reader on a low-meat or vegetarian diet or with heavy sweat losses in a hard block, none for a reader eating meat, fish and shellfish, and never sustained above the 25mg supplemental guidance level, since zinc over it depletes copper over months, the line the men's ZMA dose crosses and the reason a separate small zinc beats a formula. The audits are separate: the fish oil by whether oily fish is eaten twice a week, the zinc by the diet's meat and shellfish, and a reader may need both, one or neither. The pair filed: fish oil with zinc is fine, both wanting dinner for nausea and absorption, interacting in no direction, sold to men on two maintenance sentences that are real and no boost that is, with zinc under 25mg by audit, and the worked example being the fish oil half at the dinner both want, one softgel at 17p, £14.99 for 90, with a small zinc beside it.

Fish oil and zinc, two tubs that both want dinner
The itemThe findingThe instruction
The interactionNone: a fat and a mineral on different routesTogether
Why zinc wants foodNauseates on an empty stomachWith a meal, never fasted at bedtime
Why fish oil wants fatAn ethyl ester absorbs several-fold better with fat; fewer burpsThe day's fattiest plate
The men's-pair sentencesZinc: testosterone maintenance, fertility, immune; fish oil: heart at 250mgMaintenance, not a boost
The zinc line10 to 15mg by audit; under 25mgCopper depletion above it over months
The auditsOily fish twice a week; meat and shellfish in the dietBoth, one or neither

The verdict, fine together at the meal both want, and a folklore that adds two maintenance claims into a boost

Can I take fish oil with zinc: yes, the two interacting in no direction and both wanting the same meal for different reasons, zinc because it nauseates on an empty stomach and fish oil because an ethyl ester absorbs several-fold better with fat, so one softgel and one small tablet go with dinner, with the men's-pair folklore auditing to zinc's testosterone-maintenance, fertility and immune sentences and fish oil's heart sentence, each real, each maintenance and neither a boost, and zinc dosed by audit at 10 to 15mg and kept under the 25mg copper line. The fish oil half at the dinner both want: Futuro Labs Omega 3 Fish Oil, one softgel with food, 180mg EPA and 120mg DHA, 90 for £14.99 at 17p a day.

What to check on the label

  • Take them together at dinner: no interaction, and both want the meal.
  • Never take zinc fasted: nausea.
  • Give the fish oil fat: absorption and fewer burps.
  • Read the men's pair as two maintenance sentences: not a boost.
  • Dose zinc by audit under 25mg: the copper line.

Our brand

The worked example: Futuro Labs Omega 3 Fish Oil

Futuro Labs Omega 3 Fish Oil: 1 softgel daily with food, 1000mg fish oil providing 180mg EPA and 120mg DHA (300mg combined), 90 softgels for £14.99, 17p a day, lab-tested purity, UK GMP made. Gelatin shell, so not vegetarian.

Fish oil per softgel
1000mg
EPA / DHA per softgel
180mg / 120mg (300mg combined)
Serving
1 softgel a day
Bottle
90 softgels, 90 days
Price
£14.99 (17p a day)
Softgel
mini softgel, no fishy taste
View on Amazon UK, £14.99 Full label breakdown
Futuro Labs Omega 3 Fish Oil, 90 mini softgel bottle

Questions people also ask

Is it okay to take zinc and fish oil at the same time?

Yes: a fat and a mineral on different absorption routes interact in no direction, and the two want the same meal for different reasons, zinc because it nauseates on an empty stomach and fish oil because it absorbs better with fat, so one softgel and one small tablet go with dinner.

Why does zinc make me feel sick?

Zinc on an empty stomach: 15mg or more in a fasted stomach is the reliable route to nausea and queasiness, the fasted-bedtime problem of the classic ZMA protocol, and the same tablet with a meal produces none of it.

Does zinc and fish oil boost testosterone?

No: zinc's sentence is the maintenance of normal testosterone levels in the blood, meaning adequate zinc keeps a man's testosterone where his physiology puts it and repletion restores a shortfall's loss, with no rise above normal from any dose, and fish oil holds no testosterone claim at all.

How much zinc should I take with fish oil?

By audit: 10 to 15mg a day for a reader on a low-meat or vegetarian diet or with heavy sweat losses, none for a reader eating meat, fish and shellfish, and never sustained above the 25mg supplemental guidance level, above which zinc depletes copper over months.

Do I need both zinc and fish oil?

Two separate audits: the fish oil if oily fish is not eaten twice a week, for the 250mg heart claim, and the zinc if the diet lacks meat and shellfish or a hard block sweats heavily, with a reader on a mixed diet needing neither.

Sources

  1. The GB claims register, zinc entries: zinc contributes to the maintenance of normal testosterone levels in the blood, to normal fertility and reproduction, to normal immune function and to the maintenance of normal skin, hair and nails, among others, at 15% NRV or more. https://www.gov.uk/government/publications/great-britain-nutrition-and-health-claims-nhc-register
  2. Classic absorption work on fish oil ethyl esters: uptake is markedly higher when ethyl ester omega-3 is taken with a high-fat meal, narrowing the gap to triglyceride forms. PubMed record
  3. The zinc and magnesium interaction literature: very high supplemental zinc, in the region of 140mg a day, reduced magnesium absorption and balance in a metabolic study, while ordinary supplemental doses of 10 to 25mg show no meaningful interaction, and high zinc also depletes copper. PubMed record
  4. EFSA Panel on Dietetic Products. Scientific opinion on the substantiation of health claims related to EPA and DHA and normal function of the heart (250mg daily condition of use). EFSA Journal 2010;8(10):1796. https://www.efsa.europa.eu/en/efsajournal/pub/1796