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Macronutrient Intake Recommendations: What Does the Evidence Indicate?

ScientificJournalWith the increased interest in how we address obesity and the associated metabolic risk factors, there has been more focus on greater understanding of how macronutrient intake (source and amount) affects our health. A big splash occurred with the re-issuing of Atkins’ Diet over a decade ago. Since then, and with the ever-increasing impact of social media, societal interest in how food impacts health has exponentially escalated.

Currently, there are discussions surrounding:

  1. Whether calories are as important to health outcomes as we once thought
  2. The “toxicity” of certain ingredients and nutrients
  3. How the source and type of macronutrient influences our bodies and environment
  4. How genetic alterations of our plant-derived food impacts our health

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Industry-wide Impact of FTC’s POM Wonderful Ruling

Last month, the U.S. Federal Trade Commission (FTC) issued a final ruling in a case involving POM Wonderful LLC, determining that certain ads for its juice products made misleading claims about the drink’s health benefits. This case has implications beyond the immediate effects on the company involved. The decision will affect a wide swath of the food and beverage industries by further tightening the criteria that will be required to sustain claims that a given product treats a disease. The FTC said that the claims in the instant case must be backed by two randomized, controlled clinical trials. These are essentially the same criteria employed by Food and Drug Administration (FDA) in assessing new drugs. Keep Reading

Large Soda Ban: Public vs. Personal Policy

Large SodaThere has been much discussion on the proposal to ban large (>16 oz.) serving sizes of non-diet soft drinks in New York City. I am glad it has people talking about the problem of obesity, but I am not sure this policy is the best approach on balance. My colleagues and I examined the available studies published as of 2010 that might indicate whether such a policy would have the desired effect (Mattes et al., 2010).We found five randomized, controlled studies that had attempted to determine whether asking people to reduce their intake of sugar-sweetened beverages (SSBs, of all types, including soft drinks) would result in weight loss. In people who are already overweight, it appears that there is a very small mean effect in weight reduction, although it is not statistically significant when looking at the range of effects in the whole sample. Keep Reading

Soy and Cognitive Function: Latest Results

The effect of soyfoods on cognition has been a topic of some controversy. Because soybeans contain isoflavones, which are phytoestrogens, some researchers have theorized that they could prevent cognitive decline that occurs with aging as estrogen is believed to do. However, the results from a Hawaiian population study published in the year 2000 linked soy consumption with greater risk of cognitive impairment (White et al., 2000). Keep Reading

Exposing the Truth Behind the ‘Slime’

There has been a lot of media attention given to a product that is unfamiliar to most consumers, even though they have been eating it for the last 20 years. Lean finely textured beef, known by the derogatory term “pink slime,” has come to mean many things to many people. And as is often the case with something unfamiliar, people sometimes jump to conclusions that are based on incomplete facts.

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Farm Policy Should Be Food Policy

FarmingAmerica’s history includes a rich tradition of agricultural productivity, and we have all benefited from it. Agricultural laws and policies have supported that productivity, recognizing the special attributes of agricultural production and the public interest involved in promoting food security.

Along the way, however, public interest has often taken a back seat to special interest. Farm policy has driven food policy, and farmers have been encouraged to farm in ways that are not sustainable, sometimes producing crops that do not contribute to our health, preserve our environment, or strengthen our regional economies. Keep Reading

Expanding the Dialogue on Sodium

After reading the President’s Message on “Food Science and Sodium” by Dr. Roger Clemens in the January issue of Food Technology magazine, I assume that this column has generated considerable feedback and I would like to add my two cents worth. Roger and I have in the past had some friendly debates on this issue, which I think is healthy.

I come to the sodium issue as someone who has considerable experience with human taste perception, in general, and salt taste perception, in particular. But I claim no special expertise on blood pressure regulation or on how much sodium humans ought to consume. Hence, I have nothing authoritative to say on the salt intake health controversy other than to suggest that to describe recommendations by the vast majority of health professionals and relevant government agencies worldwide as “conventional wisdom” is a bit misleading. Keep Reading

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