Low-carb induction: Starting LCHF can... - Low-Carb High-Fat...

Low-Carb High-Fat (LCHF)

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Low-carb induction

TheAwfulToad profile image
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Starting LCHF can be scary. The low-carb bit is easy enough: you just stop eating carbs. The high-fat bit is harder, because you have to get past a lifetime of programming telling you that dietary fat causes your arteries to instantly harden and fur up, and your heart to explode.

Presumably, if you’ve got to this point, you’ve at least reached an intellectual understanding that this is wrong. Once you’ve completed the induction phase, you’ll have an emotional and physical understanding of the ‘rightness’ of dietary fats, and it’s all downhill from there.

What is induction, and why do we do it? The concept can be fairly ascribed to Dr Atkins, who (as far as I know) was the first to describe the scientific basis for it. It turns out that human bodies need a bit of a kick to make them switch on their alternative (fat-based) power source; if you try to reduce carbs slowly, the most likely outcome is that your body will protest, and that’s not what you want. However, if you give it no viable option for a few days, it’ll reconfigure everything to run on fat instead of glucose, and it’ll keep that configuration even when you (cautiously) reintroduce a few carbs.

The ‘kick’ takes the form of a drastic carbohydrate reduction and an equally-drastic increase in dietary fat. This isn’t as awful as it sounds. The reason is that carbs are often packaged with other things (water and fibre, mostly) whereas fats are not. Cooked rice, for example, contains about 1kCal/gram (not 4kCal/gram, which is the figure for dry starch). Butter and coconut oil, by contrast, contain 7kCal/gram and 8kCal/gram, respectively. In other words, a little fat goes a long way: you’ll need 150g+/day initially, and it’s surprisingly easy to incorporate 50g+ of fat into each meal. An 8-ounce steak, for example, includes 40g of fat even if you trim off the obvious lumpy bits. Cream is 25+% fat, so 40g in your coffee is another 10g.

During induction, your carbohydrate target is 25g/day ... or less. This is hard. It means eliminating all of the following:

-Sugar.

-All forms of grains, flour, starch. That means no cereal, pasta, bread, rice, or even cornflour thickener.

-Any plant foods with a high starch or sugar content. That means potatoes, carrots, tomatoes, and basically all fruit.

-Margarine. Yes, it’s a fat. The problem is that it’s a synthetic one, and your body will do odd things with it. Don’t eat it.

-Fizzy drinks. Or in fact any drink with sugar in it.

-Beer and wine. Don’t worry, you’ll be able to bring these back soon!

Unfortunately, induction is best described in terms of the limited range of foods you are allowed to eat, rather than the foods you can't eat:

-Salad and green veg. It’s important to have plenty of these on your plate, and there are lots and lots of choices. Be adventurous. LCHF is absolutely NOT about meat. Do your research online if you’re not sure if a particular vegetable has a high carb content – not many do.

-All meat, fish, and seafood; avoid lean cuts.

-Eggs.

-Fat-based spreads/condiments/dressings: butter, lard, olive oil, coconut oil, mayonnaise, cream.

-Beans, but only in very small amounts. Preferably green beans rather than the dried sort.

-Nuts, again in modest amounts.

-All forms of dairy products except milk (go easy on yoghurt and soft cheeses)

A lot of people find it hard to go cold turkey on sugar. It’s perfectly OK to use sweeteners for a while, but try to reduce them such that you’re down to zero after a month or so.

A vitamin pill can’t hurt, but it’s not essential.

It is critically important that you do not stint on fat. Try to get used to eating the fat on your bacon (a Full English, minus the toast and baked beans, is an ideal breakfast). Cook everything in a generous amount of butter or lard. Do NOT attempt to do a ‘low salt’ diet – on LCHF your body has a much higher requirement for salt, so feel free to add salt to taste. No need to overdo it, of course. Many people find a daily dose of meat-based soup helps maintain electrolyte balance, which can be somewhat disturbed during the first 3-4 days.

There is no calorie target, nor do you need a certain amount of protein. Just eat until you feel full. If you feel hungry, eat more. Eggs, or a piece of cheese, or a few nuts, make an ideal snack. Stay hydrated, but don't overdo it. Coffee and tea are fine, as long as they're sugar-free.

Desserts are, unfortunately, verboten. If you really want something dessert-like, go with Greek yoghurt or sugar-free jelly (add some cream).

Don’t be unduly perturbed if you feel a little rough during the first week. It’s quite normal to feel slightly light-headed or weak while your body adapts: I would compare it to something like a mild hangover (three pints the night before) or the feeling of malaise you get before the onset of a cold. It’s not “lack of carbs” as such, it’s just that your metabolism needs time to figure out that there are no more carbs coming. You will wake up one day feeling just fine.

How long do you need to keep this up for? Well, as long as you can cope with it. No less than 10 days, preferably 14. During this ultra-low-carb phase, you will see rapid weight loss. You’ll lose about 1kg over the first week, although sadly this is mostly water. You’ll probably lose 1kg of actual fat over the next week.

Two weeks in, most people have had enough and want a bit more variety. Fortunately, the most noticeable effect of induction is that you have a much-reduced desire to eat carbs. It’s OK to bring back moderately-starchy vegetables like pumpkin, carrots, and sweetcorn, plus milk and fruit … in small amounts. I do not recommend going further than that.

Around this time you will also notice a reduced desire to eat fat. This is because your body is now sourcing a lot of its energy from your own bodyfat. Just listen to your appetite and dial back a little on the dietary fat.

By the end of the first month, you’ll be completely fat-adapted and will probably be able to walk past a doughnut shop with only a slight twinge of regret. Six months later, you won’t even notice doughnut shops.

A few things to be aware of:

Whatever you’ve read on the internets, you will not die if you stop eating carbs. If that were true, I’d have been dead long ago. As noted, you’ll feel a little odd somewhere between day 3 and day 6 of induction (it varies). This will get better, not worse. If you DO feel really, disastrously ill, then you may have some undiagnosed medical condition and you should revert to your previous diet and consult your doctor; however, this is incredibly unlikely. LCHF induction is not in any way harmful for people with normal metabolism.

If you are diabetic, or if you are taking any kind of medicine, talk to your doctor before doing this. Many of the drugs which are fashionable today are designed specifically to slap a band-aid on the problems caused by high-carb low-fat diets. In many cases, they do this by interfering with metabolic pathways which are critically important for LCHF: in other words, your doctor will need to get you off those drugs before you can attempt LCHF, or it will not work properly. At worst, you could find yourself in serious trouble because the drugs are preventing your body from dealing normally with the new diet.

There are two common mistakes that people make with LCHF induction: a) trying to ‘improve’ it by reducing the fat or the salt, or b) not fully understanding how much fat is required because they are so used to skimping on cooking oils, buying lean cuts of meat, or discarding fat trimmings. It is almost impossible to eat too much fat during LCHF, but it’s certainly possible to eat too little.

Finally, I would advise you not to make too much song and dance about your diet; you will meet a lot of hostility and well-meaning (although annoying) advice about how terribly dangerous it is to eat fat. Nod and smile, and stick to the plan.

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45 Replies
G1nny profile image
G1nny

Thank you again Mr. A Toad, I made the mistake of not enough fat! Basically I am vegetarian except occasional fish.

G1nny profile image
G1nny in reply toG1nny

Today I had 52g fat 7 carbs and 40g protein. I even took 2 tablespoons of olive oil to increase the fat.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toG1nny

Sounds like a good ratio! Your diet sounds very calorie-restricted, but as long as you don't feel hungry or weak, it's most likely not a problem. Do you eat dairy or coconut oil? These both contain a high proportion of medium-chain fatty acids, which are very accessible as a source of energy:

ncbi.nlm.nih.gov/pubmed/957...

On the rare occasions I do a low-carb cycle, I drink a lot of coffee with a big slug of pouring cream (proper cream of course, not 'creamer'). It's really nice - almost like a dessert! - and it's a great way to add a few grams of fat here and there.

G1nny profile image
G1nny in reply toTheAwfulToad

What is pouring cream? I made keto mug bread with a little cheese. I use almond milk no dairy except cheese.

G1nny profile image
G1nny in reply toG1nny

Thank you for your advice.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toG1nny

I can't remember what it's called in the UK - single cream? half cream? - but basically it's about 20% fat. Obviously you could use heavier cream, but it tends to separate out into fat globules and doesn't look appetising.

It basically boils down to a matter of taste preference - if you just don't like cream, fair enough, stick with the almond milk; but cream, yoghurt and cheese are all excellent staples on low-carb, especially for vegetarians.

G1nny profile image
G1nny in reply toTheAwfulToad

Thank you, half and half is what it is probably half whole milk and half cream. I used to drink it in my coffee, I’ll start that up again. Thank you again.

Very interesting. What is the issue with milk? Lactose?

TheAwfulToad profile image
TheAwfulToadAmbassador in reply to

Yes, lactose. Its immediate metabolic fate is cleavage into glucose and galactose, both of which will provoke an insulin response. Yoghurt is OK because a lot of the lactose has been converted to lactate (which can be used directly as a fuel - there is some evidence that your brain will use lactate, if available, in preference to glucose).

Most people find that milk is fine during weight maintenance, but not during induction.

moreless profile image
moreless

Apologies for being so long in replying, Toad.

Thank you for this post! It's just what I was looking for when I took my first shaky steps into LCHF! I needed someone to reassure me that eating fat was a natural thing to do and wasn't going to lead to an instant MI!

I'm sure this will reassure and encourage others and I can confirm that it's a totally liberating experience! No more bingeing and starving, no more cravings and no more guilt!

TheAwfulToad profile image
TheAwfulToadAmbassador in reply tomoreless

Thanks for the encouragement moreless!

I agree, one of the most wonderful things about LCHF is the sense of liberation. You just eat. You don't have to keep thinking "Is this bad for me? Am I going over my calorie target?". That sort of mindset is not healthy by any definition.

It's quite depressing that people genuinely believe that fat is not just the sole reason for heart attacks, but will inevitably cause one, when (at best) the research shows it might be a very minor contributory factor in the context of a high-carb diet.

This obsession with fat and CVD means that people completely overlook all the big factors that actually do contribute to ill-health: a sedentary lifestyle, smoking, stress, and mountains of processed food.

elliebath profile image
elliebath in reply toTheAwfulToad

That is so true!! For many years, my family believed that my Dad's early (and fatal) heart attack in 1980 , age 59, was caused by his passion for cheese every day and lashings of butter on his toast .

Consequently I've come through adulthood believing that if I ate these foods I'd end up the same way ( not helped by ill informed medics along the way). Nobody considered the fact that every day Dad drove his car to the corner shop for cigarettes, sat in the chair every night watching TV,drinking tea with 3 sugars and a few biscuits.

At long last I've cracked weight maintenance, have buttery eggs for breakfast and cream in my coffee. It is truly liberating 😆

Adaboo profile image
Adaboo in reply toelliebath

Oh wow, exactly the same as my dad did! He had first HA in his 30’s and then loads of heart problems and a stroke up until a big HA killed him. 😔

elliebath profile image
elliebath in reply toAdaboo

I'm sorry to hear that, tragically young for both our dads.

Mine had first HA at 50 then fatal one at 59. Prior to that, mum had breast cancer at 49 died at 51 ...but thats how it was back in 1960s.

heya TheAwfulToad thanks for the induction post.

I have just completed 3 days complete water fast and am coming back to eating tomorrow with a LCHF approach.

I am a pescetarian and I'm going into this tentatively..

thanks :-)

TheAwfulToad profile image
TheAwfulToadAmbassador in reply to

Good luck Happybeee! You should be just fine with fish - contrary to popular opinion, there's really no need to eat lots of meat on LCHF as long as you get adequate fat from somewhere. One of my favourites when I did induction was Japanese-style grilled mackerel with miso soup and pickles (no rice, of course).

moyese profile image
moyese

I have been on a lchf diet before but find the lack of fibre very difficult, and of course resulting constipation. Any advice, tried the usual ie physullum etc.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply tomoyese

Are you sure you're eating enough green veg? Normally you'd get enough fibre from those. Personally I also have a very small serving of sugar-free muesli with breakfast ... just in case. About one tablespoonful, with milk. Sometimes I add half a banana.

Constipation is more often down to a (transient) electrolyte imbalance. It normally sorts itself out after a few days. If it doesn't, try a mug of beef soup once a day - homemade is best, obviously, but if you can't be bothered with that a stock cube or some oxo in boiling water is the next-best.

moyese profile image
moyese in reply toTheAwfulToad

Thank you

ExcitableElf profile image
ExcitableElf

This is such a great post! I’m going to do this once the weekly shop is done on Friday. I’m already fairly low carb, but I don’t think low enough. Thanks for the advice.

pamela22 profile image
pamela22

Thank you so much for sharing this info TheAwfulToad.

I am looking to kick start my metabolism and start burning bodyfat, I have recently been diagnosed with hashimotos disease so I'm on a gluten free diet and taking levothyroxine for my thyroid.

I've been trying out a few LCHF recipies and am starting to get over the notion that 'fat is bad" it's a whole new world with real wholesome food and fats on the menu.

And the elimination of grains on the LCHF is ideal for me as I'm avoiding gluten.

I've been eating a lot more eggs as it's so easy to put the healthy veg in and pile high with spinach which wilts down so quickly but tastes lovely.

Do you have any 'go to recipies' that would be good for the initial stages of the LCHF kick start stage???

XxX

moreless profile image
moreless in reply topamela22

Maybe this will help, Pamela healthunlocked.com/lchf-die...

And this dietdoctor.com/low-carb/ket...

pamela22 profile image
pamela22 in reply tomoreless

Many thanks moreless I'm off to have a look at the web links you shared with me, im looking forward to getting started properly and hopefully see the weight shift

XxX

TheAwfulToad profile image
TheAwfulToadAmbassador in reply topamela22

Well done for taking the plunge! Hope it goes well for you.

As mentioned by moreless , the dietdoctor website has loads of great recipes. I suggest you pick three or four main meals that you like, and construct ONE breakfast, and then just stick with those few meals for the whole induction period. It avoids thinking "what am I going to eat today?".

I suggest starting the day with a very big (low-carb) breakfast. If you skip it, and you work, you may not get the chance to eat until lunchtime, which means you'll be absolutely ravenous by the time you eat and tempted to gorge on carbs.

If you have problems, drop in and ask. Most of us here have been through induction (the most awkward bit) and can offer some tips that might work for you.

pamela22 profile image
pamela22 in reply toTheAwfulToad

Thank you for offering to be there when I need to get some advice, I'm going to have a look at the web links from moreless and take your advice to make up regular recipies to use daily to avoid daily meal decisions .. That's a fab tip thanks

XxX

energy1 profile image
energy1

Hi TheAweful Toad just love your profile name ! Thank you for this introduction about low carb high fat diet. I am on medication shall contact my dr first think will be ok to start. I am bit nervous starting this diet . all my life have been on a normal healthy diet. As i am getting older not feeling very healthy having symptoms of tiredness and low energy even my skin being very dehydrated i do drink fair bit of water a day.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toenergy1

It's a funny thing, isn't it: the "healthy diet" makes us all look and feel unhealthy.

Have a little think about that.

Your doctor may well tell you that you have to keep on eating the diet that's making you ill, and to keep taking your pills. If he says that, find another doctor. Many of them now understand that modern chronic diseases are diet related, and they also understand it's not the fault of dietary fat.

One of the reasons I'm here is that my uncle followed the "doctor knows best" path. Doctor said he had to keep taking his statins even though they were causing his kidneys to fail. Because you don't want to get heart disease, do you?

Uncle spent several years on dialysis and eventually had a kidney transplant. And he's got heart disease. He's still eating his "healthy" low-fat high-carb diet. So that worked out well, didn't it, doctor?

We're living through a very, very strange period in history. MikePollard posted some very relevant advice the other day: take charge of your own health. Nobody knows your own body like you do. If you feel bad eating the government-issue diet, try a different one. And if you feel good on LCHF, trust that your body has got it right.

PS please don't just stop taking your pills. Many of the fashionable drugs today must be stopped slowly - so do enlist your doctor's help. However, if you are taking pills for cholesterol, blood sugar control, or blood pressure - you'll feel a whole lot better when they're gone.

Tiggerr profile image
Tiggerr

It's taken me a long time to find this post (not that I was looking for it) and even if I'd come across it previously, probably my brain wasn't in the right place to see it's relevance to me. I found it succinctly written and in a way that made it easy for me to understand and follow... thanks!

I finally feel in a place where I'll be happy to follow this path.

My weigh-in day is later this week so I'll prep myself to start on that day.

I do have some specific questions in relation to my situation... I'm currently in quite intensive training to cycle London to Brighton in the middle of June. My current rides are supposedly burning around 1600 cals at a time and will eventually be over 3000.

1. How does the LCHF fit in with this kind of training, especially during the induction process?

2. During training I use two types of sport drink, one for energy and one for electrolytes though in essence they are 97% & 93% carbohydrates. Training is currently just over 2 hours but will be over 4 hours soon. Do you know what my body is going to do and/or need during these sessions?

Thanks in advance!

moreless profile image
moreless in reply toTiggerr

You might like to watch this, Tiggerr :)

youtube.com/watch?v=6WVLrQm...

Tiggerr profile image
Tiggerr in reply tomoreless

Thanks moreless. Just off out but will do when I get home.

Lol! I've just seen the title... you have me mistaken for someone else ;) :)

moreless profile image
moreless in reply toTiggerr

Not at all! You're our own Mark Cavendish! :)

Tiggerr profile image
Tiggerr in reply tomoreless

Maybe when he was six :)

Tiggerr profile image
Tiggerr in reply tomoreless

Just finished watching it... v. interesting and enlightening. I think it answers my last question to Toad though, in that it doesn't look like I'm going to be able to start induction until I've completed JoGLE :(

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toTiggerr

I can thoroughly recommend "The Art And Science of Low-Carb Performance", if you want all the technical details.

It depends a great deal on where you are in your low-carb journey, but a fat-adapted athlete is going to outperform his glycogen-fuelled brethren in extreme endurance events. And you should find that drinking pure simple carbs during an event is a bit like injecting nitrous oxide into a gasoline engine :)

I would just add a note of caution: do not attempt induction just before your event. Do the ride as you normally would and then go hardcore LCHF afterwards. Maybe try the same event next year and compare your result! Your body performs a lot of drastic adaptations to become fat-fuelled, and it will take several months before you're performing at (or above) your carb-fuelled level. But it absolutely will happen: I run, and I can sustain 13-14 METs for a couple of kilometers, or 10+METs for much longer (never found out how long - I get bored before I'm exhausted!). So to those who insist that low-carb makes you feel weak and exhausted - the NHS, for example - I say: what a ginormous cartload of road apples.

Tiggerr profile image
Tiggerr in reply toTheAwfulToad

Thanks for that although I had to look up what a MET was :) but now I have a problem with when to start the induction.

I have the London to Brighton (87km) on 16 June and if all goes well I'll be training to cycle John O'Groats to Lands End about 6 or so weeks later (max of prob 160 kms per day).

It sounds like there isn't going to be enough time for my metabolism to adjust!? :(

Have I understood that right?

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toTiggerr

It sort of depends what you mean by "adjust". If you did your induction now, you'd probably be OK on the London-Brighton event ... but you won't turn in a top performance. The LEJOG event six weeks later - who knows? There's no precedent, as far as I know. You're not going to pass out halfway through, but you probably won't be firing on all cylinders. But I'm really just guessing based on my experience and some experimental observations from the book I mentioned. Depending on your diet to date (and your individual genetics) you might be fine.

If you're only interested in completing the LEJOG, and aren't that bothered about your time, you might want to give it a go just out of curiosity! Personally, though, I'd take time out to make the dietary switchover, train for a few months, and then give it another shot next year.

Tiggerr profile image
Tiggerr in reply toTheAwfulToad

Thanks for that.

I've been planning 'JoGLE' :) for a year and should have been going at the end of June. My time was taken up unexpectedly leaving me behind on my training schedule. As much as I'd like to change things now (dietarily speaking), for me the ride has to come first.

I think I'm going to struggle on the ride to some extent without potentially making it harder. If time was of no issue then I take your point but I'm already pushing towards a fortnight because I'm taking the scenic route :)

I appreciate all your feedback as it's helped me see the pros and cons of what may or may not happen and at least come to a decision that I'm happy with.

After JoGLE you can expect me to be plaguing this forum for advice and more.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toTiggerr

Good luck with the ride(s)! Let us know what (dietary) route you decide to take. With that sort of event, either approach has its pros and cons and I guess a lot hinges on your personal genetic quirks.

Tiggerr profile image
Tiggerr in reply toTheAwfulToad

Will do.

Bobbi6 profile image
Bobbi6

This is great information. I took notes. Now to start doing this for 14 days. I started low carb (45g) 3 days ago. I see I need to go lower. Thanks for the info. Can’t wait to start tomorrow.

TheAwfulToad profile image
TheAwfulToadAmbassador in reply toBobbi6

If it's working for you so far, you may not need to go lower. The 25g number is a completely arbitrary value that just happens to work for everyone. But if you've got no carb cravings and you're losing weight, it's fine to just keep doing what you're doing.

Bobbi6 profile image
Bobbi6 in reply toTheAwfulToad

Oh ok. Good to know.

elliebath profile image
elliebath

Well let's hope so! Hopefully research and health advice will catch up in time for our kids to benefit .

pamela22 profile image
pamela22

How can veganism really be healthy for us all, on the lchf eating plan we can clearly see that grains =carbs = weight gain.

I'm not convinced that veganism is the answer for us all.

help2020 profile image
help2020

Thank you.

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