By Joseph Schwarcz
Devour salmon. It’s choked with stable omega-3 fat. Don’t devour salmon. It’s jam-packed with PCBs and mercury. consume extra greens. They’re choked with reliable antioxidants. Don’t consume extra greens. The insecticides provide you with melanoma. omit your dinner jacket and wear your lab coat: you need to be a dietary scientist nowadays sooner than you take a seat to eat—which is why we want Dr. Joe Schwarcz, the specialist in connecting chemistry to daily life. In An Apple an afternoon, he’s taken his thorough wisdom of nutrition chemistry, utilized it to today’s best nutrients fears, traits, and questions, and leavened it along with his trademark lighthearted process. the result's either an enjoyable revelation of the miracles of technological know-how taking place in bodies each time we chunk right into a morsel of nutrients, and a telling exploration of the myths, claims, and misconceptions surrounding our obsession with diets, foodstuff, and weight.Looking first at how nutrition impacts our healthiness, Dr. Joe examines what’s in tomatoes, soy, and broccoli which could hold us fit and the way the loads of compounds in one meals react after they hit bodies. Then he investigates how we control our nutrients offer, delving into the technology of nutrients ingredients and what merits we'd observe from including micro organism to sure meals. He clears up the confusion approximately contaminants, reading every little thing from pesticide residues, remnants of antibiotics, the feared trans fat, and chemical substances that can leach from cookware. And he's taking a studied examine the technology of energy and weighs in on renowned diets.
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Additional resources for An apple a day: the myths, misconceptions, and truths about the foods we eat
In other words, the whole is somehow greater than the sum of its parts. There is no doubt that antioxidants from fruits and vegetables are an important part of our diet, but the relevance of a single food or drink having more or less of these compounds is questionable. What matters is our total antioxidant intake. On a weight basis, acai berries may have a higher concentration of antioxidants than apples, but it is certainly easier to load up on apples. However, there is another important issue.
What’s the overall message for human beings? We should reduce our calorie intake and eat lots of tomato products. And eating those tomato products may even play a role in protecting the heart. At least that’s one conclusion that can be drawn from an intriguing Italian study. Imagine being admitted to a hospital with a heart attack and a doctor asking how many times a week you eat pizza. This was the actual question that was asked of 507 heart attack victims and 478 others who had been admitted to a hospital in Milan, Italy, between 1995 and 1999.
When they exposed rat brain cells to a specific polyphenol, quercetin, they found that the cells resisted oxidative damage more, implying a potential reduction in the risk of developing Alzheimer’s and other such brain diseases. Indeed, a group at the University of South Florida found a greatly reduced risk of Alzheimer’s disease in seniors who drank fruit or vegetable juices at least three times a week compared with those who drank these juices less than once a week. Other studies have found that quercetin reduces the growth of human prostate cancer cells in the lab and that its presence in the diet is inversely associated with the risk of lung cancer.
An apple a day: the myths, misconceptions, and truths about the foods we eat by Joseph Schwarcz