Recommended Serving

A recommended daily serving of walnuts is one ounce, which equals about one quarter cup or 12-14 walnut halves.

That serving provides a host of nutrients:

2.5 grams of ALA, the plant-based source of omega-3 fatty acid,

 

A ONE OUNCE OF SERVING OF WALNUTS PROVIDES 18G OF TOTAL FAT - 2.5G OF MONOUNSATURATED FAT, 13G OF POLYUNSATURATED FAT, INCLUDING 2.5 GRAMS OF ALPHA-LINOLENIC ACID - THE PLANT-BASED OMEGA-3 ALA. IT ALSO PROVIDES 4G OF PROTEIN, 2G OF FIBER AND 3.721 MMOL OF ANTIOXIDANTS. 
"SUPPORTIVE BUT NOT CONCLUSIVE RESEARCH SHOWS THAT EATING 1.5 OUNCES OF WALNUTS PER DAY, AS PART OF A LOW SATURATED FAT AND LOW CHOLESTEROL DIET AND NOT RESULTING IN INCREASED CALORIC INTAKE, MAY REDUCE THE RISK OF CORONARY HEART DISEASE."  U.S. FOOD AND DRUG ADMINISTRATION, MARCH 2004
[1] HALVORSEN BL, CARLSEN MH, PHILLIPS KM, BOHN SK, HOLTE K, JACOBS DR, BLUMHOFF JR, BLUNHOFF R. CONTENT OF REDOX-ACTIVE COMPOUNDS (IE. ANTIOXIDANTS) IN FOODS CONSUMED IN THE USA.