Note: All services in AngularJS are singletons. That means that the injector uses each recipe at most once to create the object. The injector then caches the reference for all future needs. Since a Factory is a more powerful version of the Value recipe, the same service can be constructed with it.
A healthy serving size is about 1 to 2 walnuts, per day. To add these wonder nuts to your meal, chop them in your whole grain cereal or make your own walnut butter by blending a few of them with some honey and cinnamon if you wish.
It is considered that if you eat a portion of nuts (30 grams) about twice a week, it was reported in a journal called Obesity, that you are less likely to gain weight than those who do not eat nuts. See our nuts calories comparison chart to compare calories in Walnuts with the other calories in nuts.