Frequently Asked Questions
Yes — a pescatarian diet can be very healthy when it's well planned. It combines the heart-health benefits of seafood (particularly omega-3 fatty acids from oily fish like salmon, sardines and mackerel) with a strong base of plant foods. The Australian Dietary Guidelines recommend at least two serves of fish per week as part of a balanced diet, alongside vegetables, fruit, wholegrains and legumes. Pair seafood with a variety of plant foods to cover key nutrients like iron, B12 and zinc.
Pescatarians eat seafood plus all plant foods, with optional dairy and eggs. In Australia, that means locally caught fish such as Tasmanian salmon, barramundi, snapper and flathead, plus prawns, mussels and oysters. The diet also includes vegetables, fruit, wholegrains, legumes, nuts, seeds and healthy fats like olive oil and avocado. Many Australian supermarkets and fishmongers carry sustainability-certified options — look for the MSC or ASC label when shopping.
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The main difference is seafood. Both diets exclude red meat and poultry, but pescatarians include fish, shellfish and other seafood, while vegetarians do not. That extra seafood serving makes pescatarian diets typically richer in long-chain omega-3 fatty acids, vitamin B12 and iodine — nutrients that can be harder to obtain on a fully vegetarian diet without supplementation. Both diets can be nutritionally complete with thoughtful planning. .
Yes — a pescatarian diet can support weight loss when total energy intake is in deficit. Lean fish and seafood are high in protein, which supports satiety and lean muscle, while the focus on vegetables, fruit, wholegrains and legumes provides fibre and volume on relatively low calories. Watch portion sizes of higher-energy items like nuts, oils and battered or fried seafood. For tailored advice, consult an Accredited Practising Dietitian via Dietitians Australia.
