How Long To Lose Weight On 700 Calories A Day

I have been increasingly asked about the 700 calorie a day diet which was used in part during a recent BBC documentary.  This is termed a very low calorie diet by nutritionists.

At that level, losing weight wouldn’t be your main concern long term as it’s highly likely you’d develop some health problems.  However that’s not to say that very low calorie diets don’t have their use.

The full Pub Med Research Study is here – Features of a successful therapeutic fast of 382 days’ duration  – opens in new window

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Mr AB was monitored by a doctor and a team of scientists all the way through and given vitamin supplements and most notable potassium so as to prevent cardiac issues.

The case is especially interesting as many people will believe that putting yourself into a severe calorie restriction triggers ‘starvation mode’ where you store fat as soon as you start eating again.  This was not the case.  Angus kept the weight off after the experiment and he was on pretty much zero calories a day.

700 calories a day may not be life threatening as such but it’s most likely going to be hard to sustain that for a long period.

Will You Lose Weight If You Eat 700 Calories A Day?

In my experience working with clients who have tried to do these extreme calorie restriction diets.  Most end up sticking to it for a while. Then a life event or some other stressor comes along that breaks their will power.

This type of diet will be highly likely to make you feel tired and moody. Lethargy during the day will be higher as the body will create an element of adaption.  This doesn’t slow down your metabolism as such but stops you being as active.

N.E.A.T is the energy you burn while not exercising and you’ll find that when you are in a calorie deficit for a long period you will become more lazy.

The Ultimate Weight Loss Plan

Even looking at very low calorie studies. Basal metabolic rate didn’t slow down to a great extent. You still need a certain amount of energy to maintain body function so the body tries to restrict you on anything else.

This is not metabolic shut down or slow down, you are running at the same metabolic rate (within a certain margin) the body just stops you doing anything extra.

Think of it in terms of fuel in a car – you need a certain amount to keep the engine running. The miles you do determine how much you use and how quickly you use it. If you drive faster you burn through fuel quicker, if you keep your revs and speed down you can drive more economically.

Watch The Weight Drop Off By Cutting These 700 Calories A Week

You’re highly likely to break. Then end up stuffing your face with a ton of high calorie food. The result is the deficit you created eating 700 calories is quickly neutralised.

If you are going to do very low calorie dieting then taking a multivitamin supplement is highly advised. It’s also advisable that you eat at least 1g/kg bodyweight of protein in order to help maintain muscle.

There are calculators on the web to work out your BMR (the level of energy you need to exist) and your EER (the energy you burn in the day)

Is It Possible To Live Healthily On 700 Calories A Day?

When you drop calories you will use up your muscle glycogen stores as well as body fat and at 700 calories you won’t replace them to a great extent.

So our 100kg male may actually be looking at 3kg a week. Even more in the first few weeks as glycogen and water drops rapidly.

Maybe a week or two with a return to a higher calorie level but still within a deficit amount which is easier to manage.

Are There Any Ways To Burn 700 Calories In An Hour?

As a nutritionist I have done low calorie kick starts with clients who are super motivated in order to get some weight off fast. However this is not an approach I would use with everyone. I would also not do it for longer than a few weeks.

If you need some further help with planning a more realistic diet then you can watch my video series 21 Day Fat Loss Focus Challenge

If you are looking at ways to rapidly lose weight because you are unhappy with your current body shape then I urge you to rethink your strategy.

How Much Can You Lose On A 700 Calorie Diet?

In my experience such a huge restriction is only possible with an accountability partner such as a coach or close friend to keep you on track and motivated.  Doing it yourself will 99% of the time result in failure which will lead to a huge sense of frustration.

If you’d like a tailored diet plan which details exactly what to eat for fat loss check out my Lean Body Eating Plan

It is no good just to follow a low calorie diet if you do not adjust your habits and routines to create a leaner lifestyle. 

Healthy 700 Calorie Meals You Won't Have Enough Of

This is one of the key principles of my coaching practice and is why my clients are so successful in long term weight loss.

Before you go, watch this video on how to start an effective diet plan with absolutely no planning or cost to you.  Little actions lead to big changes.

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Will I Lose A Lot Of Weight Quickly From Only Eating 700 Calories A Day?

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