You can eat tuna regularly, but not every day for most people. The usual safe range for healthy adults is about 2–3 servings per week, with stricter limits for high‑mercury types like albacore and for pregnant people or children.

Key safety guidelines

  • For most healthy adults, general guidance is about 2–3 servings (around 3–4 oz each) of tuna or other low‑mercury fish per week.
  • Canned light tuna (often skipjack) is lower in mercury, so up to roughly 2–3 small cans per week is commonly considered acceptable.
  • Albacore/white/yellowfin tuna are higher in mercury; many recommendations cap these at about one 4‑oz serving per week.

Who should limit tuna more

  • Pregnant, trying to conceive, or breastfeeding: usually advised to stick mainly to canned light tuna and keep it to about 2–3 small servings per week total, with no more than one serving of higher‑mercury tuna.
  • Young children: safe amounts are smaller and age‑based (often 2–8 oz per week of light tuna, depending on age).
  • People who eat a lot of other high‑mercury fish (swordfish, shark, bigeye tuna) or have neurological concerns may need stricter limits.

Why tuna is limited

  • Tuna is nutritious (protein, omega‑3s, vitamins) but can accumulate mercury, which in excess can affect the brain and nervous system.
  • Balancing benefits and risks is the goal: a few servings a week gives nutrients without letting mercury build up too much over time.

Practical “how often” examples

  • If you eat only canned light tuna and little other fish: 2–3 tuna meals per week is a common, cautious maximum.
  • If you like albacore steaks or sushi‑style tuna: think more in terms of “occasionally” (about once a week or less), and use lighter tuna the rest of the time if you want more fish.

Quick SEO‑style notes

  • Focus phrase “how often can you eat tuna” usually points to “about 2–3 times per week for healthy adults, less for high‑mercury types or during pregnancy.”
  • This has been an ongoing trending topic in food and health forums because of concern over mercury versus the benefits of omega‑3s.

Always check official national guidelines where you live and talk to a healthcare professional for personal advice, especially if pregnant, breastfeeding, or feeding young kids.

TL;DR: For most adults, 2–3 servings of tuna per week (preferably light/skipjack) is a commonly recommended limit; higher‑mercury tunas should be eaten less often, and vulnerable groups should be more cautious.

Information gathered from public forums or data available on the internet and portrayed here.