Two and a half years ago, when I was basically living on green smoothies for brekkie and lunch, (then eating whatever I felt like all evening, which kind of sabotaged things a tad) I used to add
- Powdered spirulina
- MSM
- Powdered barley or wheatgrass
- Hemp oil or cocobutter
- Raw cacao nibs
It was a very interesting experiment.
Even though I didn't know I was doing an experiment.
I started with the green smoothies.
Felt great.
Felt so fantastic in fact that I felt justified in easing off the low carbing and started eating 'normal low GI foods' every evening.
Lost a tiny bit of weight (cos It was still too many carbs for me, in the evening)
Still felt great.
Kept it up for (about 15 months)
Eventually stopped with the green smoothies when the autumn arrived, and I fell in love with hot breakfasts again.
Kept up with the low GI, 3x a day

Within 6 weeks I had a terrible cough which turned into my first ever chest infection. Lost weight. Felt like death. Eventually had a humungous course of antibiotics and took weeks to recover.
I
think I slipped into diabetes during the smoothie/'normal food' era, but had no problems, because to smoothies kept me steady, fuelled and well. Even though the 'low GI' foods must have been spiking me hugely, each evening. But the D effects hit as within weeks of stopping the smoothies => chest infection.
Unfortunately, I didn't have a meter at the time. Wish I had. Might have saved me from some painful lessons! It's been low carbing ever since.
Does that make sense?