Pescatarian Diet: A healthy lifestyle full of benefits

Pescatarian Diet: A healthy lifestyle full of benefits

Published by Solomon on 11th Jul 2023

Pescatarian diets introduce a new  world of nutritious possibilities. Making use of the best of vegan items with seafood, the pescatarian diet offers a very sustainable approach to nourishing the body. In this article, we explore into the principles, benefits, and tips of a pescatarian diet for those who hold interest in such a unique eating style. Whether you're considering a transition or looking for fresh innovations. Get ready to savor the goodness of the ocean's bountiful offerings in this wholesome and environmentally conscious dietary approach.

What Does Pescatarian Mean?

The term "pescatarian" refers to a dietary pattern that includes seafood and fish but excludes other types of meat such as poultry, beef, pork, and lamb. Pescatarians primarily follow a vegetarian diet that incorporates seafood and fish as their main sources of animal protein.

What is a Pescatarian Diet

A pescatarian diet primarily consists of plant-based foods (like in a vegetarian diet) alongside fish and seafood. It excludes other types of meat like poultry, beef, or pork. This diet emphasizes the consumption of fruits, vegetables, whole grains, legumes, nuts, seeds, and healthy fats, while including fish and seafood as the main source of animal protein. Pescatarians choose this diet for various reasons that we will be exploring.

Difference between a Pescatarian Diet and a Ketogenic Diet

A ketogenic diet (keto diet) is a low-carbohydrate, high-fat diet that aims to shift the body into a metabolic state called ketosis. By severely restricting carbohydrate intake, the body starts utilizing fat as its primary source of energy, leading to the production of ketones. This can result in weight loss and potential benefits for certain health conditions like epilepsy and diabetes.

While they may hold some similarities, a Keto diet and a pescatarian diet are two distinct dietary approaches with different focuses and restrictions, which are:

  • Protein Sources: Pescatarian diets include fish and seafood as a primary source of protein, while keto diets focus more on high-fat animal products like meat, eggs, and dairy.
  • Carbohydrate Intake: Pescatarian diets can include a variety of carbohydrates from fruits, vegetables, grains, and legumes, while ketogenic diets restrict carbohydrate intake significantly to induce ketosis.
  • Fat Intake: Both diets emphasize the consumption of healthy fats, but a ketogenic diet places greater emphasis on high-fat foods to achieve the desired macronutrient balance for ketosis.

Health Benefits of a Pescatarian Diet

One huge reason to try a pescatarian diet would be the range of health benefits as it focuses on a plant based diet and seafood (one of the healthiest foods out there), this also means a pescatarian diet is a low carb diet as it eliminates out a lot of processed foods (processed foods usually have a higher carb content than natural foods). Here are some important health benefits associated with a pescatarian diet:


A Pescatarian diet can provide a lot of essential nutrients. Seafood are an excellent source of omega-3 fatty acids, high-quality protein, vitamins like vitamin D and B12, and minerals such as iodine, selenium, and zinc.

Cardio health

The omega-3 fatty acids found in fish like salmon, mackerel, and sardines have shown to promote heart health. They can help reduce blood triglyceride levels, lower blood pressure, improve blood vessel function, and reduce the risk of heart disease and stroke.

Reduced risk of chronic disease

Studies have suggested that sticking to a pescatarian diet may lower the risk of developing conditions like obesity, type 2 diabetes, certain types of cancer and metabolic syndrome.

Weight management

A pescatarian diet can support weight management especially in a case of weight loss (it is also just as relevant in weight gain as well).The diet is typically high in fiber, which promotes a feeling of being full and this helps control appetite. Also seafood are generally lean sources of protein, which can help achieve a healthy weight.

Brain health

Omega-3 fatty acids, found in fish are important for brain health and cognitive function. These acids have been linked to a reduced risk of cognitive decline, improved memory, and a lower likelihood of developing diseases like Alzheimer's disease.

Environmental sustainability

Pescatarian diets also has a huge positive influence on the environment. Unlike in rearing farm animals, the production of seafood has a lower carbon footprint and contributes less to greenhouse gas emissions and deforestation. Selecting sustainable seafood options further supports the conservation of marine ecosystems and responsible fishing practices.

Key Nutrients in a Pescatarian Diet

There are some distinct nutrients which emphasizes the essence of this diet that contains both plant-based foods along with seafood. Here are some key nutrients commonly found in a pescatarian diet:

  • Omega-3 fatty acids: Fatty fish like salmon, mackerel, sardines, and trout are rich sources of omega-3 fatty acids.
  • Protein: Seafood are excellent sources of high-quality lean protein. They provide all the essential amino acids required for growth, repair, and maintenance of tissues in the body. Protein is essential for building and repairing muscles, supporting immune function, and regulating hormones.
  • Vitamin B12: This is a nutrient majorly found in animal-derived foods. It plays a crucial role in red blood cell production, nerve function, and DNA synthesis. A pescatarian diet can help meet the recommended intake of  B12, which is important for individuals following a vegan diet.
  • Iodine: Seafood is a great source of iodine. Iodine is essential for the production of thyroid hormones, which regulate metabolism, growth, and development. Adequate iodine intake is crucial for maintaining thyroid health.
  • Selenium: Selenium is a mineral found abundantly in seafood. It acts as an antioxidant, supports immune function, and plays a role in thyroid health. 
  • Vitamin D: Fatty fish are a natural sources of vitamin D. Vitamin D is important for bone health, immune function, and plays a role in regulating calcium and phosphorus absorption in the body.

It is important to note that individuals following a pescatarian diet should also balance their diet by consuming a wide range of plant foods such as fruits, vegetables, whole grains, legumes, nuts, and seeds to ensure adequate intake of other essential nutrients like fiber, vitamins, minerals, and phytonutrients. 

Things to Keep in Mind When Considering a Pescatarian Diet

There are a lot of things to put into consideration when you're trying to go into a pescatarian diet. Here are some things to put to thought when investing in a pescatarian diet:

  • Choose certified sustainable seafood: Look for seafood that is certified by credible organizations. These certifications ensure that the seafood comes from well-managed fisheries.
  • Know your local fish: Familiarize yourself with local fish options in your area. Choosing locally sourced seafood reduces the carbon footprint associated with transportation and supports local fishermen.
  • Consider mercury levels: Some larger fish, such as shark, swordfish, and king mackerel, tend to have higher levels of mercury. Go for seafood with lower mercury levels, such as salmon, trout, sardines, mussels, and shrimp. These options are generally considered to be safer for regular consumption.
  • Mix up your seafood choices: Instead of only frequenting popular species, explore a variety of different seafood options. This helps reduce pressure on overfished species and promotes biodiversity. Experiment with lesser eaten species like herring, mackerel, anchovies, or sustainably farmed shellfish like oysters and clams.
  • Be aware of fishing methods: Some fishing methods, can cause significant damage to marine ecosystems. Look out fish that are caught using more sustainable methods like pole-and-line, handline, or trap fishing.
  • Reduce waste: Minimize food waste by utilizing all of the fish, including the less popular parts like fish heads or fish trimmings, in recipes or stocks. 

Great Seafood Options for A Pescatarian Diet

Here are some great seafood options that are suitable for a pescatarian diet:

Red Bream Fish

Red Bream is a good choice for pescatarians as it is a lean source of protein and contains essential nutrients such as omega-3 fatty acids, vitamins, and minerals. 


Prawns are a versatile and widely available shellfish that can be used in various dishes like stir-fries, pasta, salads, or grilled skewers.


Whether as fresh fish or canned, tuna is a popular choice for pescatarians. It can be used in salads, sandwiches, or grilled as steaks.


Hake is a lean protein white fish that is low in fat. It provides a good source of vitamins and minerals, including vitamin B12, selenium, and phosphorus. 


Mackerel is a fatty fish that is rich in omega-3 fatty acids. It can be grilled, smoked, or baked to bring out its distinct flavor.


Sardines are small fish that are usually canned and packed in oil. They can be used in salads, sandwiches, or enjoyed on their own.


Although not technically fish, crabs are often enjoyed by pescatarians. Crab meat can be used in various dishes like salads, crab cakes, or served as a standalone delicacy.

Pescatarian Box

If you're looking for a great way to get an essential mix of seafood items and fresh fish that every Pescatarian should try, why not buy our Pescatarian Box which includes Prawns, Hake, Pangasius and Red Bream, all great protein sources  for a pescatarian diet.  

Transitioning a Pescatarian Diet : Challenges and How to Overcome Them

There are a lot of issues people face when moving to a pescatarian diet. Here we'll discuss the several challenges individuals may encounter and tips for addressing them:

Finding adequate protein sources

As a pescatarian, it's important to ensure sufficient protein intake. While fish and seafood are excellent protein sources, individuals may need to explore a variety of plant-based protein sources such as legumes, tofu, tempeh, edamame, quinoa, and Greek yogurt to diversify their protein intake.

Over-reliance on seafood

It's essential to maintain a balanced diet and not solely rely on fish and seafood. Ensure a good mix of plant foods: fruits, vegetables, whole grains, nuts, seeds, and legumes to provide a wide range of nutrients and prevent monotony in meals.

Incorporating variety

Discovering new recipes and exploring different flavors can help overcome boredom or monotony. Experiment with various cooking methods, spices, herbs, and sauces to add excitement to meals. Try different types of fish and seafood to keep meals interesting.

Dining out challenges

Eating out can be challenging when following a specific dietary pattern. Research restaurants in advance, check their menus for pescatarian-friendly options, and communicate your dietary preferences to the server. You can also suggest modifications to existing menu items, such as substituting meat with seafood or ordering vegetarian dishes.

Dealing with social situations

Social gatherings and events may present challenges if the majority of the food options are meat-based. Communicate your dietary choices to friends, family, and hosts in advance, and offer to bring a pescatarian dish to share. This ensures that you have suitable options available and allows others to experience delicious pescatarian cuisine.

Nutrient deficiencies

While a pescatarian diet can provide an abundance of nutrients, it's important to ensure adequate intake of specific nutrients like iron, vitamin B12, and omega-3 fatty acids. Consider incorporating plant-based iron sources like lentils and spinach, consuming fortified foods or supplements for vitamin B12, and ensuring a variety of fatty fish to meet omega-3 needs.

Cost considerations

Depending on the availability and cost of seafood in your area, budgeting for a pescatarian diet may require making a well thought out meal plan. Try seasonal and locally sourced fish and seafood, and incorporate budget-friendly plant-based protein sources like legumes and grains to keep costs manageable.

Remember, transitioning to any new dietary pattern takes time and adjustment. Be patient with yourself and make changes gradually. It's advisable to consult a healthcare professional or registered dietitian for personalized guidance to ensure that your nutritional needs are met during the transition to a pescatarian diet.

Drawbacks of A Pescatarian Diet

While a pescatarian diet offers numerous health benefits and sustainability advantages, there are potential drawbacks to consider. It's important to be aware of these factors and take steps to address them:

  1. Mercury and environmental contaminants: Some fish and seafood may contain environmental contaminants, such as mercury, PCBs, or microplastics. Certain large predatory fish like shark, swordfish, and king mackerel, tend to accumulate higher levels of mercury. To mitigate this risk, choose fish and seafood with lower mercury levels and prioritize smaller species.
  2. Limited iron and zinc sources: Plant-based sources of iron and zinc may not be as readily absorbed by the body compared to animal sources. While fish and seafood provide these nutrients, they might not be sufficient for everyone. Incorporating other iron and zinc sources like legumes, whole grains, nuts, seeds, and fortified foods can help address potential deficiencies.
  3. Omega-3 fatty acid variability: Omega-3 fatty acids, particularly EPA and DHA, are abundant in fish and seafood. However, the content can vary based on factors like species, location, and diet. It may be challenging to consistently meet optimal omega-3 fatty acid levels solely through fish and seafood. Considering algae-based supplements or plant-based sources like flaxseeds, chia seeds, or walnuts can help supplement omega-3 intake.
  4. Limited options for certain nutrients: Although a pescatarian diet can provide a wide range of nutrients, there may still be some nutrients that require attention. For example, vitamin B12 is primarily found in animal-based foods, so ensuring adequate intake through fortified foods or supplements is important. Additionally, specific nutrients found in animal products, such as creatine or carnitine, may be more limited in a pescatarian diet. However, most individuals can meet their nutritional needs with careful planning and a well-rounded diet.
  5. Access and affordability: The availability and cost of seafood can vary depending on your location and personal circumstances. Access to fresh, sustainable seafood may be limited in certain regions, making it more challenging to incorporate it into the diet. Seafood can also be expensive compared to other protein sources, potentially impacting budget constraints.

It's essential to address these potential drawbacks by planning meals carefully, diversifying food choices, considering nutrient supplementation if needed, and staying informed about sustainable seafood options. 


Embracing a pescatarian diet can be a flavorful and nutritious choice. By incorporating seafood into your meal plan, you can enjoy a rich array of flavors, textures, and nutritional benefits in a healthy diet. 

Not only does a pescatarian diet provide ample protein, healthy fats, and essential nutrients, but it also supports sustainability efforts by promoting responsible seafood choices. By using sustainably sourced seafood, you contribute to the conservation of marine life and the preservation of our planet's delicate ecosystems.

So, if you're seeking a diet that encompasses both health and taste, consider diving into the world of pescatarianism.

If you're looking for a great starter pack into the world of marine eating, why not try our Pescatarian Box and if you're also looking for fresh groceries to go along with it, why not check out our online grocery store?