I've been doing low carb and short extended fasts since the end of May with good results (all values above are averaged over 7 days):
Mass: 78.3 to 74.0kg (-4.3kg)
Chest: 102.5 to 99.5cm (-3.0cm)
Waist / belly: 96.0 to 92.5cm (-3.5cm)
Hips: 96.5 to 94.5cm (-2.0cm)
BMI is currently about 23.6kg/m^2 however I've always lacked muscle and carried a lot of fat on my upper body so this typically under-represents my body fat percentage.
My target mass is mid-high 60kgs; if I get that far I plan to re-introduce a modest amount of low-GI carbs and push the strength training more.
I've been tracking belly size against mass and the last time I was a similar weight (2022) my belly was around 2cm larger; suggesting that more of my mass is now muscle so I've made some modest gains with the strength training I've been doing.
Visually what little muscle definition is present is the best it's been and I find myself strutting round feeling like Brad Pitt looks in Fight Club, although objectively I'm still a weak, porky little fecker..
I'm consistently losing around 0.6 - 0.7kg per week which, assuming calorific value for body fat of 8Kcal/g is the equivalent to an energy deficit of around 5200Kcal per week. Over this time period I've averaged around 150 miles per week on the bike, which at the modest c. 32Kcal/mile suggeted by my head unit is about 4800Kcal per week.
So, while the low carb's moderating effect on blood sugar is definitely helping me control my food intake it seems that without the cycling I'd not be losing a lot of mass; which perhaps isn't surprising given that my aging metabolism isn't getting any faster.
These latest proceedings began with a 60hr fast and I've done three 36hr fasts since - typically weekly over Thursday; so am due another today. Diet is mostly meat (sausages, black pudding, chicken breast, fish from the chippy), cheese, eggs, broccoli and salad; as well as kefir and a bit of fruit - strawberries and I found some fantastic peaches at the fish market a while ago.
Carb intake is limited to the relatively modest grain fillers in the black pudding and sausages, breadcrumb coatings on the chicken and sugar in the kefir and fruit.
It seems the stars have aligned currently with the fantastic weather allowing me to get out a lot on the bike, which in addition to the energy burned aids my mental health and keeps me away from thoughts of misery-binging.
I'm not the lightest I've ever been but probably as best placed as ever in terms of all-round health and hope I can keep on this for the rest of the summer to push myself well beyond what I've been able to manage before.
I hope everyone else on here trying to do similar is making good progress
