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Low carb

Low carbohydrate diet

Firs House Surgery recommends a low carbohydrate diet to lose weight, get diabetes under control and hopefully reduce blood glucose levels to pre-diabetes levels. This is a copy of the information given to those with type 2 diabetes with additional links from the HI Diabetes Support Group.

What is a low Carbohydrate Diet?

A low Carbohydrate Diet has less than 130 grams of carbohydrate per day. It is sometimes referred to as LCHF (or low carbohydrate, high fat) diet.

What is Carbohydrate?
Carbohydrate is collective name for sugars and starches. 

Sugars mainly exist as sucrose (table sugar), glucose (often found in sweets and processed foods), fructose (fruit sugar) and lactose (dairy sugar). These usually taste sweet.

Starches (bread, potatoes, pasta, rice etc) are made of long chains of glucose, which the body rapidly digests into blood glucose. Starches often do not taste so sweet, and so it’s not obvious that starches contain lots of glucose.

The body quickly digests carbohydrates into blood glucose.

To stop blood glucose rising too high the body releases the hormone insulin. Insulin tells the liver and muscles to take glucose out of the blood, and into storage. Once the liver and muscles are full of stores, insulin tells the body to turn any extra blood glucose into fat stores. 

Being in a state of excess insulin, with full stores of glucose can lead to high blood pressure, high cholesterol, fatty liver disease, central obesity. This can progress to pre-diabetes and then Type 2 Diabetes which is a state of constantly high blood glucose.

A very effective way of reversing this state is to reduce overall carbohydrate (sugar and starch) intake. It is not essential to eat carbohydrate as the body can turn both fat and protein into blood sugar. Proteins and fats are essential for health, Carbohydrates are not.

It is a really useful way to treat conditions like diabetes, high blood pressure, obesity, fatty liver and polycystic ovaries without additional medications.

Are there any side effects? 

As the body adapts to a low carbohydrate diet some people experience a mild headache for a few days, constipation can occur (but tends to improve with time). Light headedness is a sign that blood pressure is improving and some people will need to reduce blood pressure treatment. Most people find they feel less hungry than on traditional diets, and some people will need to reduce diabetes medications which actively lower glucose levels (such as gliclazide and insulin). Metformin can usually be continued as normal.

Is it for everyone? 

It can be a challenging diet for people who already miss a major food group such as vegetarians or vegans, but plenty of hints and tips are available from a wide online support network. We know that any diet that leads to sustained weight loss can benefit a range of conditions – and traditional diets which leads to weight loss can still be very effective.

Isn’t eating fat bad? 

Surprisingly most people who stick to a low carbohydrate diet see improvements in their cholesterol profile. Good cholesterol levels tend to rise, and bad cholesterol levels fall. This is because the body turns excess carbohydrate into a particularly harmful fat called triglyceride, and high insulin levels can reduce levels of good (HDL) cholesterol. HDL protects against heart disease and stroke.

Sugary and Starchy Foods are converted into glucose by the body – how do I know how much this will affect my blood sugar?

Food labels are a good way to see the total carbohydrate content in foods – but look closely for the total carbohydrate content not just the sugar content.

Low Carb Diet Resources

www.Diabetes.co.uk has some excellent sections on low carbohydrate diets for type 2 diabetes, and a support forum for patients.

A free NHS approved app for smartphones called ‘Low Carb Programme’ is available for both Apple and Android.


The Diabetes Weight Loss Cookbook  – Katie and Giancarlo Caldesi  contains helpful low carb recipes with easy to understand graphics.

The blood sugar diet -Dr Michael Mosley  https://thebloodsugardiet.com/ written by a practising doctor has great suggestions and evidence based information

www.dietdoctor.com has a huge number of helpful recipe suggestions.

Carbs & Cals  is a reference book and App which helps to know the carbohydrate content of a huge number of different foods. 

SO WHAT CAN I EAT?
Try aiming for less than 130g/day carbohydrate, and less than 30-40g/meal. Try and make snacks <5-10g carbohydrate.

Suggested breakfast options might be eggs, tomatoes, greek yoghurt, seeds, nuts, fish or bacon. Minimise breakfast cereals, and fruit juice.

Try making main meals around meat, fish or tofu, with green or leafy vegetables (Veg that grows above the ground!). Steak, Chicken, Pork, Ham, Turkey and Tofu all have minimal effect on blood sugar. 

Minimise intake of starchy carbs like rice, pasta and potatoes. Moderate amounts of full fat dairy produce such as cheese and crème fraiche can add variety and flavour to foods – but watch out for sweetened ‘fat free’ yoghurts which may be high in sugar. 

Try eating foods such as cauliflower, courgette, broccoli, and pulses in preference to root vegetables. 

Make snacks low in carbohydrates – minimise cereal bars, biscuits, cakes and muffins. Some fruits are much lower in carbohydrate content than others – apples, watermelon, strawberries, nectarines and apricots are good, but grapes and bananas have high carbohydrate content. Nuts, seeds and modest amounts of dried meat such as biltong can be useful options for snacks.

Always avoid fruits juices, smoothies and sugary fizzy drinks, especially ‘energy drinks’– check the labels carefully for sugar –even fruit sugar!

Minimise consumption of these
foods 
Eat more of these foods which have a much lower effect on blood sugar levels 
• Sugar, pastries, cakes, biscuits, crisps • Eggs 
• Cereals • Non-processed meat such as chicken, fish, beef, pork, turkey 
• Bread • Full fat (non sweetened) dairy such as greek yogurt 
• Potatoes • Nuts 
• Rice • Seeds
• Pasta • Pulses, whole beans, avocados 
• Root vegetables • Green vegetables, and other vegetables which grow above the ground 
• Bananas, grapes and tropical fruits • Cauliflower, courgettes 
• Smoothies and fruit juices • Tofu 
• Milk chocolate, white chocolate • Apples, watermelon, strawberries, raspberries 
• Ice cream • Small portions of high cocoa content dark chocolate 
• Dried fruit such as raisins and dates * Beware of low fat foods which have been sweetened with sugar – such as low fat yoghurts * • Sugar-free cordial, zero-sugar drinks
• Fizzy drinks which contain sugar, such as Coca Cola

How Do Common Foods Affect Blood Sugar Compared to the Effect of Table Sugar?

These simple graphics show how much blood sugar is made from common foods

A pdf copy of these notes for you to print out Download

DISCLAIMER

This web site provides information that group members have found useful, and is not personal medical advice. It does not necessarily reflect the views of Histon & Impington Parish Council or any other organisation.

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MEETINGS

2nd Thursday of each month

Address
Recreation Ground Community Room
New Road
Impington
CB24 9LU

Hours
7:00-8:30 p.m.

Contact

HI T2 Diabetes Support Group Facilitator:

Mike Willis

Tel 01223 232961

Email mike@hidiabetes.co.uk

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