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Better Peanut Butter October 10, 2010

Crunchy, creamy, on bread, on bananas… most of us have opinions about how we like our peanut butter that haven’t changed since childhood.  (Unless of course you’re allergic, in which case you probably just like it far away from you.)

For those of you who love it, you’ll be happy to know that this popular spread packs in protein, healthy fats (monounsaturated fats make up most of the fat content), fiber, vitamin E, niacin, and manganese. But there is one catch to optimizing the health benefits beyond sticking within the serving size (2 tbsp): steer clear of the hydrogenated oils.


Look at the ingredients list for peanut butter. Avoid peanut butters with added hydrogenated oils "aka trans fats"


A Quick Fat Lesson

Unsaturated fats: (listed as monounsaturated or polyunsaturated fats) are fats that contain one or more double bond within the carbon chain of their chemical structure. Because of their structure, these fats tend to take a more fluid form. Unsaturated fats are used for normal lipid functions, including body insulation, organ cushioning and protection, cell membrane formation, energy etc. without causing a dangerous rise in blood cholesterol levels. These are often known as the “heart healthy” fats. These these fats in moderation are good for you but keep in mind that all fats are a major source of energy (9 calories/gram). Unsaturated fats, like ALL FOOD, should only be eaten in quantities that are useful to the body or they will just end up being stored as body fat. Try to stick to the recommended serving size for best results! Examples of monounsaturated fats include, peanut oil, peanut butter, olive oil, avocado and canola oil. Examples of polyunsaturated fats include most vegetable oils, fatty fish, salad dressings (with oil), and seeds.

Saturated Fats: Found mostly in animal products (meats and dairy) and in some tropical oils (palm, coconut). The U.S. dietary guidelines recommend keeping saturated fats at 10% or less of your total fat intake. This is because saturated fats (the carbon chains are fully “saturated” or filled to capacity with hydrogen atoms) raise blood cholesterol levels and, when too much is consumed, contributes to risk of heart disease. Saturated fats are solid at room temperature.

Trans Fats: While there are a few exceptions to this rule, the majority of trans fats are the result of hydrogenation of polyunsaturated fats. In other words, hydrogen atoms are added to unsaturated fats to either partially or fully saturate them. These chemically altered fats are known to be the worst for our health when consume. Their structure is similar to saturated fats but our bodies respond to the small structural differences enough that the U.S. Dietary Guidelines recommend restricting trans fat intake to as close to zero grams as possible.

One key difference between saturated fats and trans fats: Saturated fats raise the amount of LDL cholesterol carriers in the blood and have a negligible effect on HDL cholesterol carrier levels.  Trans fats both raise LDL levels and lower HDL levels. LDL are the carriers you want less of (they increase blood cholesterol levels) and HDL are the carriers you want more of (they help to remove cholesterol from dying cells, and other places you don’t want cholesterol to be).

Why then, would we create trans fats? Trans fats are made to change the texture of fats and to extend the shelf life of many foods. While polyunsaturated fats are much better for your health, they do not hold up so well when left on a grocery store shelf or in warehouses for long periods of time. Without refrigeration, many foods rich in polyunsaturated fats will become rancid over time and no longer edible. Thus the convenience of hydrogenation was born. By hydrogenating the unsaturated fat that is natural to peanut butter, manufacturers could produce a spread that could stay good on store shelves and in your pantry for up to two years. The saturated-fat like structure of trans fats also helps create a more solid, even consistency that helps prevent separation of the oil from the rest of the spread.

All things considered, I would much rather refrigerate and stir my peanut butter than opt for the trans fat version that keeps for 2 years in the pantry. Most “natural” peanut butters are the trans-fat free versions. Check the nutrition label and look for “0” listed under the trans fat content and avoid products with “hydrogenated” or “partially hydrogenated” oils for best results.


5 Responses to “Better Peanut Butter”

  1. […] that most North Americans don’t get enough of).  The olive oil (which is a good source of monounsaturated fats) makes the taste rich and satisfying but is a healthier alternative to butter, which contains […]

  2. whats the dish on chocolate? is it good for you or do the sugars mean you have to stay away from it?

    • Great topic idea Rebecca. In small amounts, dark chocolate can be good for you because it contains natural antioxidants. To choose a dark chocolate, look for 60% or higher cacao content. I like up to 77% dark chocolate but when the percentages start getting higher than that the chocolate tends to start tasting bitter. In dark chocolate, sugars are not too high usually but you have to watch out for high saturated fat content. For a standard chocolate bar (not a king size) usually the serving size is 1/2 bar. If you eat half the chocolate bar, you will be getting about 280 calories, which includes 12g of saturated fat. This isn’t bad if its the only junk food (yes even dark chocolate should still go in the discretionary calorie category) you’re eating all day but, for most of us, we will probably have something else at some point as well. Because of this, I think that it’s best to stick to about 1/4 of a standard sized dark chocolate bar as your serving size for one day.

      Hope this helps!

      • Milk chocolate, on the other hand, does generally have both high sugar and high fat content. If you love milk chocolate, have a little piece and enjoy it but I would not consider it a health food.

  3. […] remove these molecules. The avocado, which adds a delicious creaminess to the soup body, is high in monounsaturated fat- the “heart-healthy” type of fat that helps to raise HDL levels and lower LDL […]

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