11 Best Fish: High in Omega-3s—and Environment-Friendly
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3. Atlantic Mackerel
Mackerel populations in general are hardy, so wild-caught is A-OK. But because the EDF recommends you limit consumption of the Spanish and king varieties of mackerel because of the potential for mercury contamination, stick to Atlantic mackerel as a staple. Calorie count: 232 per 4-ounce serving.