Is the word comida the same in Brazilian and European Portuguese?

Yes

The only difference between the word "comida" in Brazilian and Continental Portuguese is its pronunciation. In Brazilian Portuguese, the vowels are more open and clearly articulated, following a syllable-timed rhythm. In Continental Portuguese, unstressed vowels undergo vowel reduction, meaning the "i" and the final "a" are often shortened, clipped, or nearly swallowed, resulting in a more stress-timed rhythm.

Brazilian Portuguese Examples

1. A comida está uma delícia! (The food is delicious!)
2. Eu adoro comida caseira. (I love home-cooked food.)
3. Tem muita comida na festa. (There is a lot of food at the party.)
4. A comida de rua é muito gostosa. (Street food is very tasty.)
5. Você já preparou a comida? (Have you prepared the food?)

Continental Portuguese Examples

1. A comida está ótima! (The food is great!)
2. Adoro comida caseira. (I love home-cooked food.)
3. Há muita comida na festa. (There is a lot of food at the party.)
4. A comida de rua é muito boa. (Street food is very good.)
5. Já preparaste a comida? (Have you prepared the food?)