鱼油一般不含盐，担心盐的问题还是要从饮食入手

鱼油即使含盐也没有多少。

在动物实验中，鱼油+正常饮食可以降血压，但是鱼油+高盐饮食是不行的。

The postulated antihypertensive effect of dietary fish oil and the influence of dietary sodium on this effect were evaluated in young stroke-prone spontaneously hypertensive rats (SHRSP) by direct intra-arterial measurement of blood pressure. Weaning rats were fed synthetic diets containing olive oil or eicosapentaenoic acid-enriched fish oil (5% of dry weight) with normal (0.23%) or high (2.8%) sodium content. Catheters were implanted after 3 months for blood pressure measurement under resting conditions and to sample blood for catecholamine determinations. Effects of fish oil on vascular reactivity were assessed in the in situ blood-perfused mesentery. The overall observation, from a series of experiments, was that feeding diets containing 5% fish oil to young SHRSP resulted in a small but consistent suppression of the development of hypertension. This effect could be counteracted, however, by increasing dietary sodium intake. Observations after ganglion blockade indicate that the antihypertensive effect of fish oil is unlikely to result from a reduction in sympathetic vascular tone.

此外，我以前写过，所谓“深海鱼”是欺骗性的说法，没有任何鱼油是真正的“深海”鱼做的。鲑鱼，沙丁鱼等都不是深海鱼，鳕鱼稍深，也不是真正的深海鱼。