They can reduce inflammation.
You’ve likely heard of the inflammation-fighting powers of those all-mighty omega-3s. And while the most powerful of them all—docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA)—come from fish, the plant variety, alpha-linolenic acid or ALA, shouldn’t be totally written off. Walnuts are one of the richest sources of ALA, which may not carry all the health effects of its fishy compatriots but does still seem to fight inflammation. Experts think a diet higher in omega-3s may simply mean we’re not eating as many inflammation-provoking omega-6 fatty acids.
They tackle PMS symptoms.
Just an ounce of walnuts—that’s about 14 halves, if you want to get ultra specific—contains nearly 50% of your daily recommended intake of a mineral called manganese and about 11% of your allotment for the day of magnesium. Both have been examined in preliminary research that suggests they can help temper some of your worst PMS symptoms, including mood swings, insomnia, stomach discomfort, and low back pain.
Earlier research suggests this mineral magic might be due to the way levels of both naturally fluctuate throughout the menstrual cycle.