Ah..the old familiar sound of wanting to lose weight. No idea what the metrics are, but rowing alone will only get you so far.
There's so much data out there about successfully losing weight and keeping it off - but very little information, if you'll allow the distinction between the two.
Anecdotally, I can tell you, rowing certainly helped me lose 50 pounds over the course of a year. I weighed myself everyday, cursing, shaking my fist at the sky (figuratively) when water weight would reveal itself, in correlation to consumption of carbs - which hold their weight in water...until they've been utilized, that is.
If I were you, I would ask myself a few questions:
Am I overall healthy, despite the desire to lose some weight? If not - perhaps address these issues first. Sometimes, a blood test may reveal issues that explain weight gain - like hypothyroid, lower testosterone, and who knows what else. So, of course, consult your doctor. (In all fairness, I never did until my insurance company bribed me with a $25 gift card.)
If I am healthy - what's the goal with respect to rowing? Marathon? 10k time trial? 2k time trial? Or just overall fitness.
Once you determine the goal, then you can choose a program.
Programs tend to come in 2 categories. HR based, and 2k time trial based.
Variables like sleep, or lack of it, diet, climate and many others can impact your HR. I have tried these programs before(the free ones) and could never really feel like I was getting anywhere - but that's just me. I read Phil Maffetone's book, and he never mentions anything about max intensity or Anaerobic threshold. Just slow, steady stuff. But, slow and steady for me was different by anywhere from 5 to 10 seconds a split some days. I honestly don't know if I was going too slow to be of any real benefit, or if six months wasn't long enough to see what it would do. Given the platitudes some give Maffetone, the error is probably mine.
The 2k time trial based ones are a bit more clear for me. I know what my last 2k time was, so it's easy to know what pace I should have, given the prescribed rate and time or distance. For me, this works a lot better.
Meal timing has been a key factor for me, probably as much as meal content. Eliminating food intake after 6pm seems to go quite a long way. As I would log my food, I often found that it was after 6pm when I would want to snack on the good stuff - like chocolate covered almonds.
Further research from
https://peterattiamd.com/rickjohnson2/? ... -yt-clip4 suggests that intake of Fructose reduces metabolism. No idea how that really plays out in humans - yet, but their anecdotal evidence suggests it applies, although not to a very noticeable degree.
Still, when it comes to athletic achievement, often the total improvements are the sum of many marginal gains.
You can easily get to the weight you want. The question is - can you maintain it, and do so in a healthy, sustainable fashion? So many changes in circumstances this past couple of years for many of us - sustaining successful weight loss is an uphill battle, until you have firmly developed good habits and actually enjoy the process.