Food habits are indeed strong, but they can be changed.
The Philosopher’s Diet

Week One – 7 days down and 21 to go. . .
Satisfaction: I consumed no dairy this week.
Not having dairy products in the refrigerator is the best strategy.
Frustration: I could not prepare the energy mix (see recipe below) I usually eat at least three times a week because I forgot to buy soy yogurt.

I became a strict vegetarian over a span of two years. First, I stopped eating meat (cold) but ate fish for two years. During this time (early 1980’s) there weren't a lot of convenience foods for non meat eaters. They are readily available now and it would have made the transition easier. However, as a result, I consumed a balanced, whole-food diet that was free of processed foods. It was great to learn what foods to eat and how to prepare well-balanced meals.

Being a grad student has made preparing well-balanced meals (or even a proper meal) tricky. So you may wonder is it safe to become vegan at this time. Will I get the full range of nutrients without dairy? Will I be able to maintain a high level of energy? It is my intention to do so.

E’s Energy Mix: This is a high fiber mixture that I usually eat in the morning or mid-day. You may use any fruit of your choice to balance the tartness of the yogurt; raisins are optional.

1 apple
1 banana
Handful of raisins (optional)
¼ cup of walnuts
8 oz soy yogurt (plain)

Slice the fruit and mix it with the yogurt, grind the walnuts finely, and top with raisins. Enjoy!