Wow, I have so much to reply to in this
thread that I barely know where to start.
First of all, I'm surprised that Joseph has an image of vegans as skinny. Most of the vegans I have actually known have been wealthy urban professionals who shop at fancy "organic" grocery stores, and the vegan foods they predominantly eat are fatty heavily-processed foods that "look like" or "taste like" meat and dairy products. I'd say they have the usual range of body types for their socioeconomic
class -- fit and pretty when young, trending toward chunkiness and moderate obesity with age, but with morbid obesity being quite rare (as it tends to be among rich people).
Second of all I was surprised to read of Burra's difficulty with blood sugar control while on a vegan diet. It's completely at odds with my own (admittedly anomalous) experience with Type-II diabetes. Short version: no-added-oils (target: 10% of dietary calories from fat) plant foods diet completely cured my diabetes, bringing my blood sugar numbers back to normal without meds. (Long version
here.) I eat carbs like a fiend, with no impact on my blood sugar at all. Ask
me (the dude with no medical knowledge I didn't read on the back of a cereal box or somewhere similarly shallow) and I'll tell you that from my perspective, diabetes is all about fats and barely at all about carbs. Because that's my lived experience. Obviously it's not that way for other people. My doctor proudly shows me around his clinic as the only patient he's ever had in this poor/rural/food-desert area who successfully got off all diabetes meds with diet, but even he just shakes his head at the diversity between my food practices and what his training tells him.
But: I do eat carbs like a fiend.
I continue to eat
way too much food, just as I always have. The reasons are psychological; if I had them all unpacked and under control and fully understood, presumably they'd have less power over me. Some hints at them are: I was raised in one of those "clean your plate" environments, with a heavy dose of "don't let leftovers go to waste" and a seasoning of "eating food is the only fun thing that won't get a kid yelled at in this house". I'm an eater. I eat. I've been obese since puberty. At my worst, after a decade of ur-doin-it-rong not-as-ketogenic-as-advertised dieting and a ton of "carbs are evil" propaganda that left me "snacking" on nuts and cheese and cured meats, I was approaching "you'll have to cut a hole in the side of my trailer to get my body out" levels of morbid obesity. Of course that's when the diabetes was getting worse despite my chowing down a daily bowl of diabetes pills that cost as much every month as a reasonable month's rent would.
True story: I only tried plant-based eating because the book where I learned about it (lent to me by well-meaning friends who are true friends indeed) contained a falsifiable assertion I could test in three days. It said my blood sugar and blood pressure would show marked improvement within 72 hours if I limited my diet to unprocessed whole plant foods with no added oil ingredients. I scoffed because I "knew" my blood sugar would shoot up if I ate potatoes and rice and tomatoes and onions for three days. So I did that, confident that I'd be able to politely tell my friends "yeah, I tried that, it didn't work." They are academics; they would have respected my experimental results. Instead, my fasting blood sugar was way down by the second morning, and ever since. Suddenly it was
me that was needing to respect my experimental results.
But: I do eat carbs like a fiend.
I lost about 250 pounds before I learned how to eat (a subset of) a vegan diet with my accustomed velocity, volume, panache, and satisfaction; but learn I did. At which point about fifty of those pounds came back -- but not my diabetes. I'm still trying to learn to love greens (which I've hated universally and with a pathological disgust since being forced to eat fibrous sour nasty bitter boiled lambsquarters as a toddler) and the
permie gardening and food-foresting is helping with that, but it's a slow process. At least the
gardening gets me away from my keyboard and provides me with (not yet enough, but I'm still a noob at this) high quality plant foods I literally cannot buy for any price in my area. I'll be obese until I lose another 200 pounds, and I honestly don't know if that will ever happen. I'm eating a better diet than most vegans whose diets I know about, and I'm still obese. I'm proof: it's totally possible to eat too much vegan food, even when it's not particularly calorie-dense. So (bringing this back around to Joseph's original question) it never would have occurred to me to look at a vegan and wonder why he wasn't skinny. Vegans usually eat more fat and processed foods than I do, and I'm not skinny, so the notion wouldn't have entered my mind. I don't expect skinny vegans.