Pescetarians who do their research and are a bit stricter in buying and only eating fish with low mercury levels could eat fish more than twice a week: “but you just have to be careful of the type of fish you choose to eat”. “The advice for the general population is that we should be having fish two times a week.
Harbstreet says those eating pescatarian typically have two or more seafood meals per week. The remainder of the meals and snacks are plant-based and are similar to a Mediterranean-style of eating.
But is it safe to eat fish every day? “For most individuals it's fine to eat fish every day,” says Eric Rimm, professor of epidemiology and nutrition, in an August 30, 2015 article on Today.com, adding that “it's certainly better to eat fish every day than to eat beef every day.”
Pescatarians have a lot in common with vegetarians. They eat fruits, veggies, nuts, seeds, whole grains, beans, eggs, and dairy, and stay away from meat and poultry. But there's one way they part company from vegetarians: Pescatarians eat fish and other seafood.
"The increase of omega-3 fatty acids from the seafood can, over time, reduce a person's risk for heart disease, lower blood pressure and cholesterol levels, reduce the risk for colorectal cancer (particularly if they are replacing red meat with seafood), slow the rate of mental decline, and improve mood," Bowerman says ...
Vitamins and Minerals
Some of these nutrients include vitamin D, vitamin B-12, iodine and zinc. Pescetarians, however, can easily obtain adequate amounts by eating a wide variety of fish, shellfish, whole grains and fresh produce.
Practicing a Pescatarian Diet can be beneficial as this diet contains high levels of Omega-3 fatty acids, which can help fight against heart disease, cancer, diabetes, and obesity. A Pescatarian diet allows more flexibility in comparison with a vegetarian diet and has health benefits that can increase longevity.
Being a rich source of protein, fish and chicken are equally considered good in terms of losing weight. While fish is an excellent source of omega-3 fatty acids too, which provides satiety and helps to cut down on food cravings and a person's indulgence is less for unhealthy food.
The pescatarian diet is higher in some nutrients than vegan and other vegetarian diets. As long as you manage your diet properly, you'll have no trouble building muscle, losing fat, and staying healthy while eating a pescatarian diet.
“Compared to following a vegan diet, eating a pescetarian diet means there's less risk of nutritional deficiencies and it's easier to meet the recommended levels of vitamin B12, iron and zinc. Seafood contains Omega-3 and other fatty acids that have a protective impact on your heart health. It's also anti-inflammatory.
Halibut, grouper, mahi-mahi, albacore tuna and canned tuna fall under the FDA's “good choices” category and should be eaten no more than once a week. Swordfish, orange roughy and bigeye tuna are best avoided, as they contain the highest levels of mercury.
Worst: Orange Roughy
These fish, also known as slimeheads, can live up to 150 years. But that means they've been around unhealthy elements, like mercury, for a long time. So they're not the best option for a healthy diet.
Some pescatarians do not consume eggs or dairy which can mean they may be lacking in essential nutrients such as calcium, phosphorus, vitamin B12 and zinc.
When combined with regular exercise, a pescatarian diet that emphasizes nutrient-dense foods that are naturally lower in calories and fat could certainly help you lose weight and promote healthy weight management.
By that definition, a pescatarian is someone who chooses to eat a vegetarian diet, but who also eats fish and other seafood. It's a largely plant-based diet of whole grains, nuts, legumes, produce and healthy fats, with seafood playing a key role as a main protein source. Many pescatarians also eat dairy and eggs.
Fish Oil Capsules for Pescatarians
If you're a pescatarian -- a person who does not eat red meat or poultry but does consume fish and seafood -- the American Heart Association recommends that it's better for you to eat a 3.5-ounce serving of cooked fish at least two times a week than for you to take fish oil capsules.
Getting enough iron
As a pescatarian, it's useful to know that three ounces of oysters, clams, mollusks, or mussels contain the same amount of iron as three ounces of beef or chicken liver; three ounces of canned sardines in oil contain the same amount of iron as three ounces of cooked beef.
Eat up to 12 ounces (two average meals) a week of a variety of fish and shellfish that are lower in mercury. Shrimp, canned light tuna, salmon, pollock, and catfish are low-mercury fish. Albacore (“white”) tuna has more mercury than canned light tuna. So limit your intake of albacore tuna to once a week.
While they are both excellent sources of protein and add to your nutrient profile, the benefits of fish tend to be slightly higher than chicken, especially when it comes to the Omega-3 content in it.
It's not dangerous to eat salmon every day for the general population. However, if you do find yourself eating salmon every day, it's even more important to make sure it's sourced responsibly to ensure contaminants are low. Pregnant women, however, should stick to the recommended 8-12 oz of salmon per week.
Read the fine print of the study, and you'll see that pescetarians—those who have a mostly plant-based diet but eat some seafood—were the true winners, with a slightly lower mortality rate than vegans, ovo-lacto vegetarians, and indiscriminate meat eaters.
Supports good overall health and weight management
Limiting meat may also aid weight loss and maintenance. An analysis of 12 high quality studies found that people who followed vegetarian diets for an average of 18 weeks lost significantly more weight than those who ate nonvegetarian diets ( 3 ).