Milk nutrition facts

Index, feed.

Excerpts of nutritional information for two brands of Canadian milk, where "=" means the same value as the previous column.

Lactantia

Source: https://lactantia.ca/food-product-category/purfiltre/

Natrel

Sources:

• Regular: skim, 1%, 2%, 3.25%;

• lactose-free: skim, 1%, 2%, 3.25%.

Notes

• The hike in calories from one line to the next, attributable to the increase in fat content, credits about 9 calories to each gram of fat: this is consistent with what nutritional guidelines indicate (computation: $\frac{150 - (1 - 0.0325) \cdot 80}{8 - 0} = 9.075,$ based on the calorie counts for Natrel skim versus 3.25% lactose-free milk).

• For some reason, Natrel's lactose-free milk is lower in carbohydrates and energy than their regular milk, while Lactantia has the exact same nutrition fact label for both kinds, at each level of fat content. This probably means that the two companies they use different processes to get rid of lactose. Information I could find says that lactose-free milk is made by adding the enzyme lactase to regular milk, which breaks down the carbohydrate lactose into galactose and glucose, consuming some of the water and producing some heat. Both non-heat products also appear to be carbohydrates, so it would make some sense for the regular vs lactose-free milk carbohydrate amounts to be similar or even equal, but I don't know how to compute that.

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David Haguenauer <www@kurokatta.org>
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