Wednesday, August 23, 2017

Designed to Fit Nutrition Post-Summer Slim Down

Mark your calendars for the the Designed to Fit Nutrition Post-Summer Slim Down! It starts on Monday, September 18th! We have limited availability, so be sure to reserve your spot!

If your summer was all about eating, drinking, and being merry, this meal plan is for you! It’s time to get back on track and set yourself up for a happy and healthy fall season. I know that I had a REALLY fun summer, so I’ll be doing the Post-Summer Slim Down and sharing my experience on CNC, so I hope you decide to join me! It’s time to get it together, people! 🙂

Our 3-week Post-Summer Slim Down starts Monday, September 18th. It incorporates whole, unprocessed foods and low sugar to reset your body and reduce cravings as you work toward your weight loss and health goals.

Here’s what it will entail:

  • The first week of your diet will include minimal starchy vegetables, fruits, grains, and dairy. Weeks 2 and 3 will add low-glycemic sugars, such as sweet potatoes, berries, and oats.
  • Throughout the plan, you will avoid added sugars (i.e. honey, maple syrup, etc.) and alcohol.
  • Each week includes 3 fully built-out days (breakfast, lunch, dinner, snacks) that you will rotate for the week (here’s why). Each day is set to your personal macronutrient prescription (for both workout and rest days, if applicable).
  • Each week will have corresponding grocery lists and recipes with macronutrient breakdowns.
  • You will have access to a coach to address challenges or minor food swaps as needed.

Our 3-week Post-Summer Slim Down Meal Plan includes:

  • Your personal macronutrient goals (protein, carbs, and fat)
  • 3 weeks (3 days per week – here’s why) of meal plans customized to your specific macronutrients goals and food preferences*
  • Access to a coach to address personal challenges
  • Corresponding grocery shopping lists with simple food prep instructions
  • Membership and support from our private Facebook group

This meal plan starts Monday, September 18th, so be sure to reserve your spot as soon as possible! The deadline to sign up is Saturday, September, 9th. 

MY OTHER RECIPES

* This meal plan is customized to your individual macronutrient goals, but not personal dietary preferences (i.e. you don’t like tomatoes). For individuals with a number of dietary restrictions, please select one of our DTFN Custom Meal Plans.

If you have any questions, please don’t hesitate to reach out! I’m excited and can’t wait to start! I hope you decide to join me! 🙂

 



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Is Keto Bad for the Thyroid?

Home » Diet & Nutrition

August 23, 2017

Is Keto Bad for the Thyroid?

By Mark Sisson

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Sore throat woman on gray backgroundKeto is fantastic, everyone says. It’s a great way to lose weight, improve cognition, and stave off degenerative disease. It may help your performance in the gym and on the track. It could even give Grandpa some respite from Alzheimer’s.

But it’s hell on your thyroid. Right?

Keto detractors and proponents alike often warn that remaining in ketosis will tank your thyroid. The thyroid’s an important gland, exerting major influence over essential systems like fertility, energy, metabolism, body temperature regulation, blood lipids, and general wellness. It controls the metabolic rate of every organ in the body. We want it working well, so this is a major blow to keto—if the criticism holds true. Fortunately, there’s much more to this story.

The Problem with Keto—Thyroid Research

Up till now, the vast majority of studies on the effects of low-carb, high-fat diets on thyroid health have used high-PUFA high-fat diets. Could this confound the results? Yes.

It turns out that linoleic acid suppresses thyroid signaling. See the impact for yourself….

Rats on a corn oil diet convert less T4 to active T3 than rats on a lard diet.

Rats on a safflower oil diet have a more greatly reduced metabolic response to T3 than rats on a beef fat diet.

Rats on a high-PUFA diet have brown fat that’s less responsive to thyroid hormone. Remember, brown fat is the type that generates heat to keep us warm.

Rats on a long-term diet high in soybean oil have terrible body temperature regulation, which thyroid function in large part controls.

The more rapeseed meal (from which PUFA-rich canola oil is derived) you feed turkeys, the worse their thyroid signaling gets and the less meat/eggs they produce.

Heck, back in the 70s, researchers proposed using vegetable oil as a treatment for hyperthyroidism.

This reduced thyroid signaling isn’t a function of all polyunsaturated fats, however. Omega-3 PUFAs, found in seafood, increase thyroid signaling in the liver. Keep eating fish, folks.

What Other Indications Tell Us

Unfortunately, we don’t have any direct studies comparing the effects of PUFA-based and SFA/MUFA-based high fat diets on thyroid function in humans. We do have a few that offer some revealing indications, however.

In 1995, researchers placed healthy young adults on either a low-carb, high-protein diet or on a low-carb, high-PUFA diet. The latter group experienced big drops in T3 levels, though the significance of the change wasn’t explored.

Later, Jeff Volek ran a low-carb, high-fat study in adults using a diet with Primal-ish fatty acid ratios (8% carbs, 61% fat, 30% protein, with 25% calories coming from SFA, 25% from MUFA, and 11% from PUFA). He didn’t directly measure T3, but the high-fat group had normal T4 and lost significant body fat, which is very hard to do if you’re hypothyroid.

Another, much older study pitted the body temperature regulation of low-carb, high-fat (from cream and butter) dieters against that of high-carb, low-fat dieters by exposing both groups to several hours of -20°C exposure under different feeding conditions. After fasting, both groups reduced body temperature by the same amount in response to cold. After eating, things changed. Those who ate the high-fat meal experienced lower drops in body temperature. Since body temperature regulation is controlled by the thyroid, this suggests that 56 days of high-fat (from cream and butter) dieting had a positive effect on thyroid function.

Key Points We Miss about Keto

Yet, the fact remains that many people report disrupted thyroid panels after going keto. Assuming they’re telling the truth (and I see no reason to doubt them), they aren’t chugging soybean oil, they’re eating enough pro-thyroid nutrients like vitamin A, iodine, and selenium, and they aren’t overdoing goitrogens (don’t eat 2 pounds of Brussels sprouts a day).

What else could be happening?

Calorie restriction lowers thyroid hormone. After all, the thyroid acts as barometer of environmental abundance. If things are good and there’s plenty of food coming in, the thyroid will be active, allowing babies to be made, metabolic output to be high, and energy levels to shoot up. If things are bad and food is scarce, the thyroid will down-regulate, limiting fertility, energy, and metabolic output. Calorie restriction tells the body that things are bad and food is scarce, because, well, energy isn’t coming in like before.

Ketogenic diets are excellent at getting people to inadvertently reduce calorie intake. That’s one of their primary benefits, in fact. But if you go too low, you may lower T3.

Weight loss lowers thyroid activity. Irrespective of the diet used, losing weight reduces conversion of T4 into active T3. Weight loss is a common occurrence on a ketogenic diet. For many, it’s the primary goal. If you have weight to lose, it’s going to happen on keto.

You’re trying to train too much and too intensively on keto. When you endure psychological or physiological stress, the body converts T4 into something called reverse T3. Reverse T3 does the opposite of T3—it lowers metabolism and conserves energy, in case things are falling apart around you. If that seems like a disproportional response to doing too much CrossFit without eating carbs, remember that the environmental conditions under which this physiological system evolved featured such stressors as famine, war, and disease.

All that said…

Maybe slightly lower T3 is a feature, not flaw, of ketosis. The longest living creatures on earth tend to have lower levels of T3. Long-living humans often have a genetic predisposition toward lower levels of T3, as if slowing things down staves off aging. If that relationship holds and is causal, perhaps emulating it with dietary means can provide longevity benefits.

You’ll often hear that carbs increase T3. Put another way, the thyroid increases T3 production to deal with the glucose. Carb consumption increases iodine requirements because the thyroid requires more iodine to make more T3 to deal with the carbs.

This doesn’t mean carbs are good or bad for the thyroid. It just means carbs require more T3 to metabolize. That “extra” T3 is intended for glucose metabolism, not necessarily “making you feel awesome.” If anything, a well-constructed and maintained keto diet has the potential to make you more efficient with your thyroid levels. Since you’re not burning excess glucose, you can get away with lower T3 levels without incurring the negative symptoms normally associated with low T3.

It all comes down to how you feel. If you’re “hypothyroid” but feel great, have plenty of energy, have no issues losing weight or maintaining body composition, I’m not worried.

But if you’re shivering all the time, your lipids are skyrocketing, you can’t muster the energy to maintain basic order in your life (let alone exercise or excel), you’re having fertility issues, and you just feel generally awful, that’s a problem.

You’ll know it if keto has tanked your thyroid. It’s difficult to miss. Thyroid panels can help you see, but symptoms are the ultimate arbiter.

Thanks for reading today, everyone. Now I’d love to hear from you. Are you on a ketogenic diet? How’s your thyroid? What feedback, stories and questions do you have? Be well and take care!

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Photos from Quinn’s Camera 4

Good morning!

Qman is on a photographing spree recently, so I wanted to share another batch of his pictures. My first few blog posts featuring his photos were such a big hit with you guys, maybe they’ll become a regular feature on CNC. Quinn’s photos give a little insight into his life as a 3 year old – I hope you enjoy them!

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Dog Days Of Summer

Those dog days of summer :mrgreen:

Breakfast chocolate smoothie and toast.

When we woke up on Monday morning I told Mazen we didn’t have to leave the house today no camp, no school, no particular place to go! We spent the morning in our jammies and built a massive pillow fort downstairs while watching Moana again.

Lunch sammie with garden tomatoes!

Mazen actually got mad when I suggested we go to the pool. “But you told me we were staying home all day!” I was starting to get cabin fever and needed to go out, plus the eclipse!

He actually loved watching it. We went to the pool to watch, and a thunderstorm had the same idea. We had clear skies all day and then the clouds suddenly rolled in. I wondered if some kind of apocalypse was actually happening! Thomas met us there with our one pair of glasses he magically found that morning (so unprepared) and we crossed our fingers that the clouds would part.

They did, just in time!

We all saw the eclipse with the glasses. Mazen though it was so cool! We were in an 86% covered location, so it didn’t really get dark. It was hard to tell because the storm clouds darkened the sky too. I saw a few videos from places in the path of totality and wish I had gone to one! It looked so cool.

We spent a few hours in the pool floating around. Mazen can now DIVE. I am amazed at his swimming progress this summer! The only thing he is missing is a hair more confidence. If I suggest he tries to swim across a pool with me next to him the whole time he chickens out after just a few strokes and grabs my arms. I know he can do it, but he doesn’t know it yet!

This wine embodies the last days of summer. I’m sorry it took me until August to discover it! It comes from Winc and is yet another clever wine label name.

Here are the rest of the bottles that came this month (I got a few extra thanks to some of you signing up! You can get $20 off your first month here. Most of the bottles are $13, and shipping is included!)

We had two hours of soccer on Monday night in the playoffs. Our team went to the semis but lost in the finals. I’m just there for a workout and the fun of the game so I don’t mind losing too much : )

Super early dinner salad with a slice of pizza after the games!

Hope you are all are enjoying a great week!

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