
Steve Victor : 5 Food Rules/Myths To Break
We've all read those sensational articles in newspapers, magazines, and online about the newest food fads and latest health issues - sometimes they are positive reviews and sometimes not. What they do is create confusion! That's because nutrition misinformation fools us into being confused and frustrated in our quest to eat healthy, even if we are already achieving great results. Thankfully, we can be enlightened by science. Here are five food fallacies you can forget about for good.
Myth #1 - High protein intake is harmful to your kidneys - Back in 1983, researchers first discovered that eating more protein increases your "glomerular filtration rate," or GFR. Think of GFR as the amount of blood your kidneys are filtering per minute. From this finding, many scientists made the leap that a higher GFR places your kidneys under greater stress.
What science has found is that while a protein-rich meal does boost GFR, it doesn't have an adverse effect on overall kidney function.
The solution is to eat your target body weight in grams of protein daily. For example, if you're a chubby 200 pounds and want to be a lean 180, then have only 180 grams of protein a day. Likewise if you're a skinny 150 pounds but want to be a muscular 180.
Myth #2 - Sweet potatoes are better for you than white potatoes - Because most Americans eat the highly processed version of the white potato - french fries and potato chips - consumption of this root vegetable has been linked to obesity and a increased diabetes risk. Meanwhile, sweet potatoes, which are typically eaten whole, have been celebrated for being rich in nutrients and also having a lower glycemic index than their white brethren.
But science has shown that both white potatoes and sweet potatoes can be good for you. Sweet potatoes have more fiber and vitamin A, but white potatoes are higher in essential minerals, such as iron, magnesium, and potassium.
The solution is to eat regular portion sizes of each - but in a form that's healthy such as, baked (a Jody Victor favorite), or mashed without so much butter, sour cream, cheese, and etc.
Myth #3 - Red meat causes cancer - In a 1986 study, researchers discovered cancer developing in rats that were fed "heterocyclic amines," compounds that are generated from overcooking meat under high heat. And since then, some studies of large populations have suggested a potential link between meat and cancer.
Science has shown no direct cause-and-effect relationship between red-meat consumption and cancer because they rely on broad surveys of people's eating habits and health afflictions, and those numbers are simply crunched to find trends, not causes.
The solution is not to stop grilling, but to trim off the burned or overcooked section of the meat before eating and to eat the recommended three servings or less of red meat per week.
Myth #4 - High-fructose corn syrup (HFCS) is more fattening than regular sugar is - In a 1968 study, rats that were fed large amounts of fructose developed high levels of fat in their bloodstreams. Then in 2002, researchers reported that Americans' increasing consumption of fructose, including that in HFCS, paralleled our skyrocketing rates of obesity.
Science has shown that both HFCS and sucrose - better known as table sugar - contain similar amounts of fructose. The truth is, there's no evidence to show any differences in these two types of sugar. Both will cause weight gain when consumed in excess.
The solution is that HFCS and regular sugar are empty-calorie carbohydrates that should be consumed in limited amounts by keeping soft drinks, sweetened fruit juices, and prepackaged desserts to a minimum (a Jody Victor suggestion).
Myth #5 - Salt causes high blood pressure and should be avoided - In the 1940s, doctors started using salt restriction to treat people with high blood pressure. Later, studies confirmed that reducing salt could help reduce hypertension.
Large-scale scientific reviews have determined there's no reason for people with normal blood pressure to restrict their sodium intake. If you already have high blood pressure, you may be "salt sensitive" and reducing the amount of salt you eat could be helpful - check with your doctor. It has been found that by balancing your intake of sodium with and equal or better intake of potassium you won't have to restrict sodium. Because it's really the balance of the two minerals that matters.
The solution is to strive for a potassium-rich diet, which you can achieve by eating a wide variety of fruits, vegetables, and legumes - spinach, broccoli (a Jody Victor favorite), bananas, white potatoes, and most types of beans.
And as Jody would say - check with your doctor before making any diet changes.
All the Best!
Steve Victor