Wednesday, June 16, 2010

Ketogenic Diets - Effective, But Are They Healthy?

(My Original Blog Post: http://ping.fm/95TC3)
There has been a lot more QnA going on at the Naked Nutrition Facebook Page (If you haven't already, make sure to head over, click image below, and 'Like It') and so I'll start answering some of the questions in more depth here on the blog.

Naked Nutrition Fan Page



Today's question comes from Shawn and it is about the ketogenic diets and if they are healthy?
"I know that keto diets are effective for losing fat, but is it a healthy way of eating otherwise? After staying true to the WSFL diet for a while, I may have lost some weight, but I just don't feel like I'm giving my body what it needs to be healthy (specifically, enough vegetables; for one, I don't feel like I get enough dietary fiber on this diet, not to mention all the other good stuff veggies bring to the table). I'm completely off the starchy and grainy carbs, but do fibrous carbs actually prevent ketosis as well?"

Let me answer the second part of your question, then the first. The normal timeline of a ketogenic diet is a 2 week 'induction' followed by several phases (of in determinant length) with increased levels of carbohydrates. During the induction phase you would only take in <20g/d of carbohydrates. This is really the only time you would need to worry about monitoring whether or not you are in ketosis. You can monitor your ketotic status (I don't think ketotic is an actual word but you know what I mean) with Ketostix. During this time period you really do need to be careful about your carbohydrate intake and the ketostix are useful at monitoring your ketone production.

[caption id="attachment_2749" align="aligncenter" width="300" caption="Ketostix Bayer Reagent Strips for Urinalysis"]Ketostix Bayer Reagent Strips for Urinalysis, Ketone Test[/caption]

After the two week period you can increase your carbs up to 50g/d. These carbs should come mainly in the form of vegetables so you shouldn't feel like you are restricting you vegetable intake too much because 50 grams of carbs give you...

  • 12.5 cups of broccoli florets or

  • 7 cups of cooked spinach or

  • 1 head of cabbage or

  • 7 medium size red bell peppers or

  • 8 cups of cherry tomatoes


Pint of Cherry Tomatoes



So the answer to the second part of your questions is...No, you don't need to restrict your intake of fibrous carb because as you can see from the list above it would require a lot of fibrous carbs to top 50 grams/day. You don't need to worrying about monitoring urinary ketosis beyond the induction peroid anyway, just monitor your fat loss.



Now to transition to the first part of your question regarding getting ample antioxidant and 'goodies' from vegetables.  1 serving of broccoli is acutally only 1/2 a cup so if you ate only broccoli you would be getting 25 servings of vegetables per day (not that I'm recommending eating only broccoli - the math is just easy with that as an example). The current recommendations for vegetable intake is only 5 servings (2.5 cups) per day!

My clients and other people that use Naked Nutrition always eat way more fruits and vegetables than are currently recommended even when on lower carbohydrate diets. Also Dr. Jeff Volek anecdotally told me once that the people whom participate in the low carb diet studies he runs at the University of Connecticut always find themselves eating more vegetables on the low carb diets compared to their normal eating habits.

As you transition away from weight loss to a diet maintenance phase you will increase your carbohydrate intake even more. I recommend that you do this by adding more fruits and vegetables as well as fiber rich grains (for breakfast and following workouts per the 6th Pillar of Nutrition). For more specifics on this transition check out my chapter in the Warp Speed Fat Loss Nutrition Manual called "Life After Warp Speed Fat Loss."

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