Reading Past the Headline: Low Fat vs Low Carb

A recent study purportedly showed that a low-carb diet is superior to a low-fat diet.  However, David Katz explains how this study was flawed.  Here’s the link: Huffington Post “Low-fat” versus Low-carb and here’s an excerpt:

It was published in the Annals of Internal Medicine.. Allegedly, the researchers compared a low-fat to a low-carb diet. But in fact, they compared a diet that allowed up to 30 percent of calories from fat to a diet that allowed up to 40 grams of daily carbohydrate…

baseline carbohydrate intake was 240 grams per day, so while fat intake was “trimmed” 5 percent, carbohydrate intake in that assignment was slashed 75 percent. This might have been billed “a study to compare a really big change from baseline diet to a really small change from baseline diet.”…

the low-carb diet, since it was actually low-carb, obviously was much more restrictive than the low-fat diet, which wasn’t actually low-fat. That had the predictable result: those on the low-carb assignment took in many fewer calories…

I am not an advocate of low-fat diets. I think the concept is obsolete. I am an advocate, based on the evidence, of wholesome foods in sensible combinations. That dietary pattern can be low or high in fat, relatively lower or higher in carbohydrate.

Related blog posts:

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.