Always trust the information on the package.
Wolfram Alpha is good for stuff that doesn't come with nutritional values (fish, meat, etc).
Make sure you use the correct information. Wolphram Alpha works by giving you the medium value of all online food libraries. All it takes is one database to be off for the whole value to be off.
But it's never by much. What I do is I always round the numbers up. For instance, if something has 378 calories I'll count it as 390 just to be sure.
This is only true if you're cutting and want to make sure you're not consuming more calories than what is needed.
Wolfram Alpha is good for stuff that doesn't come with nutritional values (fish, meat, etc).
Make sure you use the correct information. Wolphram Alpha works by giving you the medium value of all online food libraries. All it takes is one database to be off for the whole value to be off.
But it's never by much. What I do is I always round the numbers up. For instance, if something has 378 calories I'll count it as 390 just to be sure.
This is only true if you're cutting and want to make sure you're not consuming more calories than what is needed.