OMG, DIY FMD

I’ve been getting into the habit of regularly doing 5 day fasting mimicking diets. I’ve decided to settle on doing one every few weeks, doing the diet for 5 days, followed by 16 days of my normal diet.

At $250 a pop, that started to sound pretty expensive (especially when you factor in how little food you get), so I decided to try making an FMD using foods I sourced myself.

I tried this a couple years ago and failed miserably, mostly because of a lack of measuring things correctly and counting out the calories, as well as the fact that I wasn’t paying close attention to the macronutrients.

So this time I decided to try it again and do it right. I decided to build a similar looking meal plan using soups, olives and crackers. As part of a promotion I had extra Fast bars from L-Nutra so I used those as well.

The Meal Plan

Here is what my Day 2 food selection looked like, and it’s pretty representative of the rest of the days:

On Day 1 I picked an Amy’s soup with higher caloric density, one of the “hearty” branded soups. Of the non-hearty soups, some of their soups are 120 calories a can, and some are 190, so keep an eye on that and adjust portions accordingly.

Results

This DIY FMD worked beautifully! I felt the same types of effects I would feel on the L-Nutra FMD, both good and bad. My blood sugars look fantastic, blood pressure is lower, and I get a little restless at night due to extra energy. And I am 13 pounds lighter than I was five days ago.

The canned soups I am using are much tastier than the L-Nutra powdered soups, and I think their composition is healthier too; L-Nutra’s powdered soups use a lot of potato and rice starch (well, not a lot; the entire soup is usually 110 or so calories) whereas the canned soups are made of veggies and vegetable stock.

I made a fresh batch of gazpacho before my FMD as one of the daily meals and that was a great choice; the gazpacho is absolutely delicious and flavorful. The biggest downside is the lack of a precise calorie count that a prepackaged food item would offer me, which also gives me an excuse to have a little more of it after i’m done with a cup. It was actually really nice to have meals that were made of fresh vegetables (well, ones that I liquefied in my blender anyway).

I do plan to experiment with replacing the Fast Bars in a future FMD; they’re kind of expensive at about $4 a pop and I think I can get similar macronutrients from KIND bars, though I am worried they might not be quite as filling. I may also try making them myself; there is a recipe for making them that looks like it’ll create a good approximation. The Fast Bars that ship by themselves also include cacao nibs in the bars, which ended up being a really tasty addition, so I’d probably try to find those too.

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Fasting Without Fasting

Fasting is a fantastic way to treat type 2 diabetes. With no food to digest, your insulin levels will drop, and you’ll burn through fat in your liver and the rest of your body. And if you fast for multiple days your body will see additional benefits, such as autophagy kicking in and recycling old cells.

But fasting can be challenging! The ritual of multiple daily meals is deeply embedded into our lives. And, of course, the actual hunger is is kind of annoying to deal with (though it isn’t as bad as you might imagine).

I’ve experimented with an alternative called a fasting mimicking diet (hereafter referred to as an FMD). L-Nutra sells these as a kit under the Prolon brand and that’s what I’ve been using so far. The biggest drawback is that it’s fairly expensive at $250 (and that’s doubly disappointing when you factor in what a low calorie diet this is supposed to be!).

This isn’t quackery, either (despite an endorsement from Gwyneth Paltrow). It’s backed by decades of research on longevity performed by Dr. Valter Longo and his team. He devised this FMD protocol for cancer patients about to undergo chemo to give them better results but his research has shown that periodically going through an FMD will improve longevity and other important health markers, and the positive effects of the FMD continue even after you resume your normal diet.

Is the FMD easy to do? I don’t want to blow smoke up your ass. It’s not a walk in the park, but I’ve also done a 5 day water fast before, and the FMD is way easier to do, and it’s easier to incorporate into your daily life.

The kit comes in a box roughly the size of a shoe box:

prolon kit box

(imagine the first three boxes are in there too)

When you look at it, you think “hey, this isn’t so bad.” Of course, then when you grab one of the boxes and remind yourself that this is all you’re eating today, it’s a little more daunting.

prolon day 2

The food consists of powdered soups, kale crackers, olives, and snack bars. They also include some supplements, some teas, and for days 2–5, a glycerin-based energy drink.

This is how you can expect your week to go:

  • Day 1: “Hey, this isn’t so bad! I get 2 of these nut and honey bars, two soups, a package of kale crackers, a chocolate bar type thing, and some olives. It’s actually pretty filling!
  • Day 2: “Hey, wait a minute, this is… less food than yesterday. What happened to my kale crackers and my second nut bar?
  • Day 3: “Okay, we got the kale crackers back but what the hell happened to my olives?”
  • Day 4: “Oooh, I’m almost done! Good thing, too; this is starting to get a little bit repetitive.”
  • Day 5: “Well I’ll be damned, I did it!”

I made slight modifications. I largely didn’t bother with the glycerin drink on days 2–5; It struck me as empty calories (it’s basically water sweetened with glycerin with flavor added). To compensate for the calories the drink would have had, I augmented some of the meals with celery and ate some extra olives (I’ve kind of developed a taste for them!). One afternoon I had some seaweed snacks, and on the final day I augmented the final dinner with some slices of heirloom tomato. I was careful to not go over my overall calorie intake, and I have no regrets about any of these modifications. Especially the heirloom tomato; is there anything better than a nice ripe heirloom tomato?

Being a diabetic, I was skeptical about how healthy this FMD would actually be given that almost half the calories are from carbs. And while that’s a high percentage, when you’re eating <800 calories a day, the carbs aren’t really enough to do much to you (even when some of the soups use rice or potato flour as their first ingredient, both foods considered to have a high GI). And after a couple of days, you see a precipitous drop in blood sugars.

The morning I started my most recent FMD my glucose at 9am was 139. The morning after day 5, it was 119. More importantly, my ranges of blood sugars changed dramatically. On Day 1 of the FMD, they ranged from 109–243. The day after I finished the FMD, they ranged from 98–177. Today so far (2 days after the FMD ended) they’re ranging from 106–133.

glucose ranges spanning several days showing a dramatic improvement in glucose after the FMD

That’s pretty damn good. And during the FMD I wasn’t even taking any diabetes medicine (I’m taking them again now, and that probably explains why my levels today look even lower)

When I first did an FMD I was incredibly skeptical of how well it would work compared to fasting; your caloric intake is almost half carbohydrates, after all, and the primary ingredient in some of these soups is potato flour and rice flour, which struck me as not particularly healthy. But keep in mind that while the percentage of carbs is high, the absolute carb count is very low. And lo and behold, my blood sugar numbers started looking quite good after a couple days into the FMD, and importantly, even after you’re done with the FMD, your insulin response is improved and blood sugar numbers stay quite good.

Also, I lost at least 5 pounds during the FMD (I say “at least” because I was afraid to weigh myself at the beginning, so my baseline is from a day between my last FMD and the morning after I finished this FMD).

My plan is to start doing an FMD every couple of weeks. For my next one I’m going to use foods I make myself, just to save money and offer myself a somewhat improved variety of foods. I feel super optimistic about this approach, too; each FMD is not a huge commitment, and I just have to spend the bulk of my willpower budget in short five-day increments.

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