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Resveratrol: natural supplement or pharmaceutical breakthrough?

Before we delve into this too deeply, keep in mind that the answer might be neither one. Resveratrol, the antioxidant polyphenol from red wine that I dubbed the “miracle molecule” in my book, has had an interesting career. It first came into the spotlight in the early 1990’s following the “French paradox” story on the CBS-TV show “60 Minutes” as a potential explanation for the effect. Research attention ramped up quickly, and there seemed to be no end to the list of beneficial properties on health and longevity. The real breakthrough was the discovery that resveratrol was an activator of an enzyme called sirtuin, responsible for a specific metabolic change associated with dramatically increased longevity. Overnight an obscure field of biochemistry research blossomed into a massive supplement industry. But an interesting thing happened on the way to the marketplace. The scientist who is credited with the discovery of resveratrol’s sirtuin-activating abilities, Christoph Westphal, par...

Is wine-fed beef a healthier choice?

Leave it to those crazy Canadians to come up with the idea of feeding wine to beef cattle. While so many stockyards are filled with cows standing knee-deep in their own droppings, bloated from a corn-based diet, these bovine bon vivants are sipping red wine and eating organic. According to Jandince Ravndahl of Sezmu Meats in British Columbia, “They moo at one another a little more and seem more relaxed. There are a few that lap it up out of the pail. After they've had it for a while, when they see us coming with the pitchers, they don't run, but they come faster than usual.” Do pre-marinated cows make healthier beef? Apparently it is at least more tender and has a sweeter taste, though I have not had the opportunity to try it myself. I can however think of many reasons why it would be healthier. Pairing red wine with beef has a specific health advantage, in that the iron in the hemoglobin – this is what makes red meat red – is a potent oxidant neatly counteracted by red wine...

Why the proposed ban on direct wine shipping would be harmful to public health

A number of convoluted laws came into place following prohibition, many of which are based on the same faulty reasoning that led to curbs on alcohol sales in the first place. Although wine remained somewhat available during prohibition (people took a lot of sacramental wine it seems), a ban on direct shipping to consumers remained for a number of years. These regulations varied from state to state, with many states allowing wineries to ship directly to their customers within the state, but gradually a system of reciprocity between states with such allowances developed and was confirmed in a 2005 Supreme Court ruling. An echo of prohibition rang out this year however with the proposal in Congress (H.R. 5034) to ban such sales. Unsurprisingly, the bill was put forth by wholesalers, who would stand to lose by being bypassed. But rather than draw attention to the real reasons behind the proposal, the lobbying campaign in support of it trots out the same tired public health arguments tha...

Wine is a food: New USDA Guidelines

There is a chapter in my book “Age Gets Better with Wine” called “Wine is a Food” because what I found in my research for the book that having wine with meals is key to unlocking its healthful properties. There is no question that people use food as a drug, hence the term “comfort food.” I would even make the case that. Given the epidemic of morbid obesity, the effects of food abuse far outweigh those of alcohol abuse. So if wine is indeed a food, what is the recommended daily allowance? Though authorities have long shied away from explicitly recommending that people drink wine for better health, the U.S. Department of Agriculture recently updated its policy recommendations to reflect the ever-increasing evidence of wine’s health benefits. Notably, mentions of the benefits of moderate drinking have begun to replace the admonishments about the ill effects of alcohol abuse. These two drinking patterns are distinct and separate, though it seems to have taken some time to reach the poin...

The weight is over: new hope for the wine diet

I write this post with a bit of trepidation, because anytime we get in to the topic of wine and weight loss the inevitable controversy about resveratrol diet pills comes up. In fact it is the most recent findings about resveratrol and diet that prompted me to write this, and like so many previous reports it seems to have been widely over-interpreted. Supplement manufacturers are all over it despite the fact that like nearly every previous study, it wasn’t done on humans. The study in question was however done on lemurs, a type of primate, so in theory they are closer to humans than lab mice or fruit flies. There is however an important difference, in that these lemurs have a variable body temperature regulation system such that their metabolism varies with the time of year. In winter they gain weight, which provided researchers with a convenient model to study the effects of resveratrol. What was found with resveratrol supplementation was increased satiety (i.e. less hunger and eatin...

Eye believe: resveratrol may prevent blindness

Here’s a word that you should know: angiogenesis. Sounds like a cover of a classic Rolling Stones song by Phil Collins’ former band, but what it refers to is the growth of new blood vessels. Sometimes this is a good thing, sometimes not. In the case of some causes of blindness, abnormal angiogenesis is a very bad thing indeed. Resveratrol, the superstar molecule from red wine, has long been known to inhibit angiogenesis. This may be one of the reasons why it fights cancer, since tumors rely on ingrowth of new blood vessels in order to expand. Abnormal angiogenesis is also involved in some causes of age-related blindness such as diabetic retinopathy and macular degeneration, conditions affecting thousands each year. A recent study suggests that resveratrol’s ability to inhibit angiogenesis might help to save eyesight for many. Like many such studies, this one was done in mice. These poor subjects had laser treatments to destroy some of the blood vessels in their retinas. Normally, t...

Drink to your health: The wine-medical research connection

As I discovered in researching my book Age Gets Better with Wine, from ancient times it has been wed to health care and healthy living. In modern times, wine has come to support medical research more directly, through charity auctions and direct funding. Credit the granddaddy of them all, the Hospices de Beaune, for showing the way. But some wineries are taking it a step further. A few years ago I had the singular pleasure of attending the Staglin festival, which raises money for mental health research. What a glorious experience! All the top wineries in Napa participate, and although we had more wine that day than was strictly necessary for medical purposes, it was definitely a boon to my state of mind. Congrats to the Staglin family for raising awareness of an issue that many find uncomfortable and which suffers from a lack of research funding as a result. (The event is held every September, info on the Staglin website.) Ehlers Estate is another winery that ties its profits dire...