There's no doubt that healthy eating habits contribute to a healthy body.
It's been known for decades that the health of one's heart, our weight, prevention of illness prevention and overall body functioning are all affected by what we eat.
For women, there's the added importance of eating properly when pregnant or breastfeeding, because another person is depending on them for nourishment.

It is best to say "Yes" to seafood.

Although no single food alone can make a person healthy, eating more seafood is one way by which most of us can help improve ones diets—and overall health. Many of the studies about beneficial omega-3 fatty acids focus on fish as the primary source.
Salmon, sardines, tuna and even shellfish are rich in omega-3 fatty acid content, so increasing your consumption of all types of fish and seafood is recommended.

The American Heart Association recommends that you eat fish rich in omega-3 fatty acids twice a week in order to reap specific health benefits. The American Dietetic Association and Dietitians of Canada: Womens Health and Nutrition position paper suggests consuming two to three fish meals per week, along with a low-fat diet, for good heart health. Although all fish aren't high in omega-3s, they still can contribute important amounts of these fatty acids if they're eaten regularly. The following chart provides a general overview of fish and their omega-3 fat content.

Omega-3 Content of Fish and Shellfish
Amounts are in grams per 3 ounce portion*

Finfish
Catfish, channel, farmed, cooked, dry heat 0.2
Cod, Atlantic, cooked, dry heat 0.1
Flatfish (flounder and sole species), cooked, dry heat 0.4
Pollock, Atlantic, cooked, dry heat 0.5
Salmon, Atlantic, farmed, cooked, dry heat 1.8
Salmon, Chinook, cooked, dry heat 1.5
Salmon, Chinook, smoked, (lox), regular 0.4
Salmon, chum, cooked, dry heat 0.7
Salmon, coho, wild, cooked, dry heat 0.9
Salmon, pink, canned, solids with bone and liquid 1.4
Salmon, sockeye, canned, drained solids with bone 1.0
Salmon, sockeye, cooked, dry heat 1.0
Tuna, light, canned in water, drained solids 0.2
Tuna, white, canned in water, drained solids 0.7
Tuna, yellowfin, fresh, cooked, dry heat 0.2

Mollusks
Clam, mixed species, cooked, moist heat 0.2
Scallop, mixed species, cooked, dry heat 0.3

Shellfish
Crab, Alaska king, cooked, moist heat 0.4
Crab, Alaska king, imitation, made from surimi 0.5
Crab, blue, cooked, moist heat 0.4
Shrimp, mixed species, cooked, moist heat 0.3