Study under review: Dairy matrix effects: response to consumption of dairy fat differs when eaten within the cheese matrix—a randomized controlled trial
Several months ago, Examine.com published a blog answering the question: Is saturated fat bad for you? One of the sections focused on saturated fat’s effect on heart health, and the primary take-away was that you can’t just focus on saturated fat—you need to look at the foods that provide it. In support of this conclusion, the editors used dairy fat as an example of how the effects of saturated fat differ depending on the food source.
Specifically, different dairy products, such as butter and cheese, have different food matrices (structures in which the food compounds are arranged), and therefore different health effects. This issue has been discussed in past Study Deep Dives articles, such as Got milk (fat globule membrane)? from Study Deep Dives #9, as well as Put down the apple and have some cheddar from Study Deep Dives #10.
Until now, a question that went unanswered was how the health effects of eating nutrients is altered depending on whether they were consumed within the food matrix or alongside it. For example, would eating butter, which is mostly fat, with reduced fat cheese have the same impact as eating full-fat cheese if the amount of fat both foods have is roughly equal? The study under review answers this question.
The food matrix modifies the health effects of nutrients, such that equivalent amounts of dairy fat from cheese and butter have different effects on blood lipids. However, it is unclear whether a health difference exists when a nutrient is provided as part of a food matrix or as a supplement alongside it (e.g., butter, which is mostly fat). The study under review investigated this issue.
Other Articles in Issue #47 (September 2018)
Betaine: Can it improve body composition and performance in women?
This is the first study to look at betaine's effects on body composition and performance in women who have just started lifting.
Smackdown: Whole grains versus fruits and vegetables effects on inflammation and the gut microbiome
Overweight and obesity can be accompanied by subclinical inflammation, which may be tied in part to the gut microbiome. This study aimed to find out how increasing fruit and veggie or whole grain intake affects these.
Which oils or fats have the best effect on cholesterol?
Different oils and fats can have very different effects on blood lipids. This network meta-analysis explored exactly how different the effects are.
Mini: What’s healthy about chocolate?
We summarize which health claims about chocolate have some evidence to back them up according to a recent umbrella review on the matter.
Gut bugs as bone drugs
What effect can probiotic supplementation have on bone density? This study aimed to find out
Fighting fat with fat: omega-3s vs. NAFLD
Diet and exercise are some of the main ways to fight non-alcoholic fatty liver disease. This meta-analysis examined whether n-3 supplementation could be added to the list.
Mini: The sports supplements with the highest amount of evidence according to the ISSN
We summarize which supplements have the best evidence base for muscle building and performance enhancement according to the ISSN’s recently updated sports nutrition review.