According to the latest Healthy Eating guidance in Eating Well with Canada's Food Guide, fortified soy beverages like Silk soy beverage can be an alternative to dairy milk every day. Here's what Health Canada has to say:

"Did you know that milk and alternatives contain important nutrients that are good for your bones? Having milk or fortified soy beverages every day provides the nutrients that you need for healthy bones and optimal health."
- Canada's Food Guide

Canada's Food Guide also explains that when selecting a non-dairy milk alternative, remember to follow the Food Guide's recommendation and choose beverages that are fortified with calcium and vitamin D. Also keep in mind that while other vegetable-based milks such as almond or rice milk may contain calcium and vitamin D, they do not contain the level of protein found in fortified soy beverage, which are comparable to the amount of protein in dairy milk.