Sorry that you’ve found some of the experiences and suggestions made by forum members confusing
@Marmite - we are all just muddling along and trying to work out what works for us as individuals - to the best of our understanding, and helped by results from a BG meter that shows what happens when we eat different foods
🙂
These are my personal thoughts on the Waitrose quotes
I read today in Waitrose food magazine ; "complex carbs (wholemeal/quinoa/oats/lentils/etc ) are great for energy"
Carbs are the body’s preferred source of energy, because they are broken down quickly, beginning as soon as a saliva comes into contact with the food. However, if a person’s metabolism is beginning to struggle with the modern Western diet (which usually contains a high proportion of carbohydrate) then some glucose disregulation can occur leading to a person being identified as ‘at risk of diabetes’ (prediabetes) or getting a diagnosis of diabetes.
"low carbs in general do not support an active lifestyle"
I feel that is an opinion, rather than a fact. There are populations in various parts of the world with very hard physical lives and very limited access to carbohydrate, who need to be active but cannot rely on carbs to provide that energy.
"carbs are the body's preferred source of fuel - not only for energy, but for our brain, muscles, and major organs to function properly"
Certainly in the UK it is much easier to choose a diet that contains a proportion of carbohydrate. We do have members who are particularly sensitive to carbs and who aim for ketosis, where the metabolism adapts to burn fat as fuel through dietary ketosis, bit the vast majority of forum members incorporate carbs into their menu, at a level which seems to provide reasonable blood glucose management on the whole. This amount of carbohydrate caries widely from person to person, and is generally discovered by using a BG meter to observe how the body reacts to different foods (checking before and 2 hours after eating)
"When the carbs contain lots of fibre and fat it reduces the GI leading to a steadier release of energy and stops the BS levels seesawing”
Forum members certainly observe that fibre and fat can slow the release of carbs (eg the ‘pizza effect‘, or adding cream/butter/full fat yoghurt to dishes). Fibre seems to help some more than others.
And both effects seems to have a lot of exceptions where some people see little if any difference in wholemeal bread/pasta vs white, or where breakfast cereals like Weetabix can act like rocketfuel in some members (including me) despite a hefty amount of fibre.
In general, the evidence for GI seems fairly weak. It can provide a useful guide, but GI is a fairly artificial measure (averaged results of 100 people eating 50g carbs of a single food in isolation), where the average can be derived from a wide range of individual results.
"starchy food release energy slowly/gradually" - so why can't I eat potatoes?
You absolutely can, if you would like to! And no member here can say what the exact effect on your blood glucose will be from eating potatoes. Only that as a source of carbohydrate, they have a
potential to raise your BG sharply and dramatically. They might be able to say whether potatoes give them big BG rises within 30-60 minutes, but not what would happen for you. Similarly, no government guidance or Waitrose article can absolutely guarantee that potatoes (being starch) will release
gradually for you. You would need to check with yourself. Speed of absorption comes down to individual gut biome, metabolism and genes. Which is what makes the whole business so complex and confusing!
New and waxy potatoes tend to have a reputation for being kinder on BG than older ‘floury’ ones, and baked/jacket potatoes tend to have a reputation be being more ‘concentrated’ carb, because lots of the water evaporates during baking.
As to whether “starchy food releases energy slowly/gradually”... well, that is the $64,000 question really. Which foods do release slowly and gradually for you? For me Weetabix and porridge are both much faster acting than they are supposed to be... but they might be fine for you. We are all different!
There’s no ‘one size fits all’... we all just have to make our own choices and fond our own way through the maze
🙂