![]() The longer a tuna lives, so will the levels of mercury in its body be higher. Older fish also have higher mercury levels due to the same reason. The higher the fish ranks in the food chain, the more mercury exposed fish it consumes, thus the higher its mercury levels will eventually be. Large tuna can have elevated levels of mercury because of their high rank in ocean food chain. Since most tunas swim in the high seas and far away from polluted rivers or inland lakes, the mercury occurring in tuna is not related to industrial pollution of coastal waters. Plants that come in contact with this mercury can pass this on to little fish when eaten. This has been taking place for millions of years and is a natural phenomenon. These are cracks in the seafloor of our oceans releasing mainly hot water, but also several other elements such as mercury. Most tunas absorb mercury through eating fish and plants exposed to it. Actually many research reports point to the positive effects of eating tuna on brain development. Nevertheless persistently tuna is incorrectly related to the risk of mercury poisoning and brain damage. Fact is that with over thousands of years of tuna consumption there are no known proven cases of any humans suffering negative side effects of tuna which are brought in relation to mercury. There are a lot of misunderstandings and misinformation about mercury in tuna. The form of mercury in tuna is called methylmercury. It is widely debated because of its toxicity in large doses, though it is not dangerous in tuna. If you are eating only canned tuna, try the Safe Catch brand, all of the fish they can are tested for mercury.Mercury is a natural occurring chemical element present in tuna. I’d like to start eating more yellowtail but I don’t have a reasonably priced source that I can get it from. It seems like most fish are probably very safe to eat, but every so often you will come across one with high levels of mercury and if you end up eating a couple of those fish in close proximity to each other you may be in trouble. I do know that mercury levels are somewhat random depending on what fish you end up eating. In addition I’m also eating a lot of other fish which are lower risk but still may contain some, albeit much smaller amounts, of mercury. I enjoy using it to make poke bowls but I’m afraid about mercury poisoning because I’ve read that the FDA recommends only eating Tuna three times per month. I have been eating a lot of tuna because I’m on a diet to lose weight and lower my cholesterol. I’ve been wondering this exact same thing. What you should do is largely dependent on your goals - if you don't lift weights or care about building muscle, all that matters is ensuring you consistently eat more calories than you expend. My personal go-to while bulking is a bagel with a thick layer of peanut butter with banana slices spread around it. Prioritize eating low satiety foods (less filling foods). You can also google "satiety index" to get an idea of the relative satieties of different foods. ![]() Obviously your actual caloric expenditure will vary based on day-to-day activity. You should be above this number if you want to gain weight. ![]() It can be exhausting to track your calories day-in-day-out, so one potential method is eating like you normally would for a day and then going back and counting how much you had during the day and comparing it to your theoretical TDEE calculator number. You can use a TDEE calculator on google to estimate your TDEE to get a gauge on how many calories you generally expend in a day. Likewise, you will only lose weight if you consume less calories than you expend. In regard to weight, you will gain weight if (and only if) you consume more calories than you expend. Otherwise, you can likely get by on a decent bit less. You should shoot for ~0.8-1.0g of protein per lb of body weight daily if you strength train. Also note that while getting your protein in is important, protein is satiating, so having a lot can sate your appetite. Although there's a lot of overlap between caloric density and unhealthy food, you can still eat healthily and get a good amount of cals in. ![]() You might already know this, but prioritize calorically dense foods if you're having trouble gaining.
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