Tag Archives: fruits

Fruit and Fructose

No matter what point you’re at on the journey towards health through optimizing your nutrition, more information is always a plus.  The transition away from mostly boxed, processed foods to fresh produce consisting of colorful fruits and vegetables is always a big step.  Looking at the quality of the produce and opting to pay a little extra now for certified organic (instead for piles of meds later) is another major step in the nutrition evolution.

One thing to keep in mind at the grocery store and again in the kitchen is the fact that fruits and vegetables contain sugar.  Granted, when consuming sugar these are bar none your best source, the fact remains that each packs a delicious dose of fructose.  There is a reason that fruits in particular are so delicious and considered nature’s dessert.

“Oh great; now he’s saying fruits are bad and we shouldn’t eat them either.” That’s not what we’re saying at all.  Fruit is great, and along with the fructose can deliver ample beneficial antioxidants, vitamins, minerals, etc.  However, too much fruit can actually be a bad thing due to the high fructose content, especially if you are watching your weight or struggling with diabetes, high blood pressure, or high cholesterol.  (Once again my mother’s suggestion of moderation comes to mind.)

Another interesting fact is that sugar actually inhibits the release of human growth hormone (HGH) which is one of the main factors behind building muscle.  Something to think about if you are still opting for a high sugar, fruit smoothie after that workout.

The following is an excerpt from a recent article on Mercola.com pertaining to this topic.  After that, there are links to charts illustrating the approximate fructose content in various fruits and vegetables, if you wish to keep a closer eye on your levels, or are just curious.

“Most overweight Americans have some degree of insulin and leptin resistance. This also includes people with diabetes, and many individuals with high blood pressure or high cholesterol.

If you fall into this category, it would be prudent for you to restrict your fructose consumption to about 15 to 25 grams of fructose per day from all sources.

Those who are normal weight and relatively healthy may also benefit from reducing their intake of fructose, particularly from foods containing high fructose corn syrup or sugar, as the effects of high sugar and HFCS intake may have effects that build up over time.

Naturally, fruits also have fructose but contain many beneficial nutrients and antioxidants. For someone who is obese, one has to be careful with eating fruits that have substantial fructose content. Some fruits, such as lemons and limes, have minimal fructose content and are safe.

Other fruits, such as grapefruit, kiwi, and berries, also have relatively low fructose content and high levels of nutrients. However, fruit juices, dried fruits, and some fruits that are rich in fructose (such as pears, red apples, and plums) should be eaten relatively sparingly.

There was just a paper published in the British Medical Journal, which looked at individual fruits as a risk factor for obesity and diabetes,” Dr. Johnson says. “Certain fruits, which we know have relatively low-sugar content and very high vitamin and antioxidant contents, are actually quite healthy. Berries, in particular blueberries, are very, very healthy.

But juices, where you put all the fruit together and you get a lot of sugar in one glass, it’s just too much. When you drink that, you can flood your liver with fructose, and then that will overwhelm the benefits of all the antioxidants. You’ll still get an increased risk for fatty liver, obesity, and diabetes from fruit juice.”

If you are concerned about any of this and interested in tracking your intake, the following chart can be used as a reference guide to help you get and stay on track:

http://www.organicbuenosaires.com/2012/07/25/fructose-chart-how-much-sugar-is-in-fruit/           

For the most part vegetables are relatively extremely low in fructose and should be consumed without concern.  However, if you are someone who struggles with weight and or cravings and would like the follow the 15-25g of fructose/day stringently, the link below is a quick reference of fructose content in various veggies:

http://www.weightchart.com/nutrition/food-nutrient-highest-lowest.aspx?nn=212&h=True&ct=Vegetables%20and%20Vegetable%20Products

 

REFERENCES

http://articles.mercola.com/sites/articles/archive/2014/01/05/dr-johnson-leptin-resistance.aspx?e_cid=20140105Z1_SNL_Art_1&utm_source=snl&utm_medium=email&utm_content=art1&utm_campaign=20140105Z1&et_cid=DM38424&et_rid=389480005

 

A Proper Diet (Part 2): Healthy Preparation

By now I hope that you’ve at least begun the journey towards better health through your diet, no matter how small the change may be.  Remember, changes are more likely sustained when they are the results of many small changes practiced daily.  But enough philosophizing…

Once you’ve modified the menu, the next step involves what you do to that food before it reaches your mouth.  This is crucial and worth stepping your knowledge up for.   If you’re going to practice the discipline at the store, you may as well not waste your good intentions by destroying or contaminating that cauliflower during the preparation.

GO RAW

You can ensure you get the most out of the majority of your fruits and vegetables by consuming them raw.  I’m talking about simply washing and eating.  Various sources recommend as high as 90% of your diet being raw, and fruits and veggies are the most obvious and convenient choices.

The other food to make sure you’re consuming raw, are nuts.  Like certain vegetables, the switch from the cooked variety can be flat out disappointing to your taste buds at first.  But trust me on this, it is an acquired taste and eventually you’ll come to enjoy the raw, unsalted nut in both taste and peace of mind that it provides.

The potential issue with cooking is that when you heat food, various chemical reactions and changes take place.  Depending on the item and your method and intensity of heating, beneficial proteins denature or breakdown, and you can actually attenuate or outright eliminate those vitamins and minerals you were admirably looking for in the first place.

METHOD OF HEATING

I do realize however that most of us will continue to cook our food.  (And it’s usually considerably over the recommended 10-20%.)  The next thing to consider is how you’re going to heat it up.

When it comes to cookware, two of the least offensive include titanium and cast iron.  Notice I say “least offensive” and not best.  There is nothing “best” about these choices.  When you cook with these or any pans, it has the potential to leach the metals contained in the pans into your food.  This leads to enzymatic alteration of the food and deposition of that metal in your system.

If you do use any of these pots or pans, you can hedge your bets by turning down the heat.  I know it may take longer to cook, but harmful metals and chemicals are less likely to leach at lower heats.  Also, if you are fortunate enough to have a variety of pots and pans, mix it up to prevent overexposure to one particular metal.

Cookware you should absolutely not be using anymore is of the non-stick, Teflon variety.  Seriously, if you still have these, do yourself a favor and throw it out.  These contain the harmful chemical PFOA which has now been linked with cancer, high cholesterol, thyroid disease and reduced fertility.  So much so that manufacturers are actually mandated to eliminate all PFOA from cooking products by the year 2015.

(My guess is they couldn’t stop production or sales immediately because of the massive blow it would’ve dealt to the manufacturers’ wallet.  In the meantime the public still unknowingly serves up some PFOA infused eggs.  Delicious.)

The second major thing to be cognizant of no matter how you are cooking is the color changes of your food.  More specifically, you want to try to avoid that scrumptious browning reaction from taking place.

This reaction signifies the formation of acrylamides (carcinogen), and AGEs (advanced glycation end products).  AGEs also form in the body whenever carbohydrates react with internal proteins.  As mentioned in previous posts, our body does come equipped with a mechanism to break these down, but not when presented in a large volume.

AGEs can attach to and react with any tissue that contains a receptor for them, known as a RAGE.  RAGEs are known to be present in smooth muscle cells (heart and intestines), endothelial cells (blood vessels), cells of the immune system, lungs, liver, kidneys, pancreas, etc.  These chemical complexes damage proteins, enzymes, DNA, and hormonal receptor sites and contribute to normal aging and the diseases we attribute to it like Alzheimer’s, CVD, peripheral neuropathies, deafness, etc.  This link demonstrates the power each one of us possesses to prevent or at least lessen the severity of ample conditions.

My wife and I are always on an evolving quest to discover the safest way to heat foods like chicken, brussel sprouts and sweet potatoes.  We currently utilize cookware glass (such as Pyrex) to bake chicken and a ceramic steamer for the sprouts or sweet potatoes.  (Yes, these two veggies need to be heated.  I tried them raw.  It wasn’t pretty.)

Steaming vegetables has long been a healthy recommendation, but the problem with simply following the steaming advice is that most steamers are plastic.  As mentioned in our discussion on water, when plastic is heated, the chemicals contained in the plastic leach into the food or water.  Simply stated, you should never cook with plastic.

Last thing to remember is that sometimes there is no better substitute than some common sense.  Hopefully you realize the potential power the food you put in your body has.  Hopefully you’ll respect this and make some good choices.  But ultimately you’re going to eat what you’d like.  Enjoy your life.  If need be, indulge in cheat meals every so often.  Just don’t go tricking yourself into thinking that deep fried broccoli and those honey roasted nuts are in any way, shape or form healthy.