Any mention of calories in the article refers to large calories, hence the notation as kcals.

I agree it's confusing, but because almost everyone means a large calorie when they say "calorie", it seemed like the most readable and simplest solution was to refer to them as calories and use the kcal notation in the tables.

All of the tables indicate the use of kcal as the unit. The fact isn't spelled out in the text, but this comment seems more like a pet peeve in terminology than an accurate criticism.

It occurs to me, that if all the parts in a conversation understand the correct meaning pedant-ism can be left aside.

Yet another reason why non-SI should die a fiery death. 1J is always exactly one joule and nobody talks about 1kJ as ‘large joule’.

Typical notation is Calories (note the capital C) is calories * 1000

1000 calories = 1 Calorie = 1 kcal

Yes, it's weird and inconsistent in the article.