The Bit Nobody Talks About — Getting the Transition Right
Most of the content online is either about cutting or bulking. You rarely see anyone talk honestly about the bit in between — the transition phase where you move from one to the other. That's the part I've been living through over the past few months, and honestly, it's the part I find most interesting. I started this process sitting at mid-80kg, running a controlled cut at 2,100 calories a day, and I'm now moving into a lean bulk sitting between 2,500 and 2,600 calories. The gap between those two numbers sounds simple on paper. In practice, getting it right takes more thought than either phase on its own.
Why I Started Researching This
I've watched people — myself included in the past — finish a cut, feel relieved it's over, and then just start eating more without any real structure. Within six or eight weeks they've undone a chunk of what they worked for. The fat comes back faster than it left, and the muscle they were hoping to build doesn't show up the way they expected. I wanted to understand why that happens and whether there was a more deliberate way to approach it. That's what pushed me into looking at nutrition periodisation properly — not just the broad concept, but how to apply it practically when you're shopping in Dunnes or Lidl and trying to manage your macros around Irish food options rather than the perfectly optimised meal plans you see on American fitness accounts.
What the Research Actually Says
Research suggests that the body's response to a caloric surplus after a deficit is heavily influenced by the rate at which calories are increased and the composition of those additional calories. Studies indicate that aggressive overfeeding after a prolonged cut leads to disproportionate fat storage compared to lean mass gain — largely because of hormonal shifts, including changes in leptin, ghrelin, and insulin sensitivity that occur during the deficit phase. The body, in a sense, has become more efficient at storing energy.
What's interesting is that research also points to calorie cycling — varying intake around training sessions — as a useful tool for managing this transition. The idea is that higher calorie intake on training days, when muscle protein synthesis is elevated and nutrient partitioning is more favourable, directs more of those extra calories toward recovery and adaptation rather than fat storage. On rest days, calories drop closer to maintenance. It's not a dramatic swing, but even a 200–300 calorie difference around training days appears to have a measurable effect on body composition over time, according to the available literature. None of this is black and white — individual response varies considerably — but the mechanisms are well-documented enough to make it worth structuring your intake around.
Daily activity level during a bulk is another factor that gets less attention than it deserves. Spontaneous physical activity tends to decrease when people move into a surplus, which compounds the issue. Keeping baseline movement consistent helps maintain insulin sensitivity and supports overall metabolic health across the transition.
My Personal Experience
Here's what my actual setup looks like. Coming off the cut at 2,100 calories, I moved to a maintenance period at around 2,300 before stepping up to the lean bulk range of 2,500–2,600. I didn't jump straight from cut to bulk — that deliberate maintenance window is something I'd recommend to anyone doing this. It gave my body a couple of weeks to normalise before I started asking it to build.
The calorie cycling is built around my training days. On days I'm in the gym, I'll sit at the higher end of that range or slightly above. On rest days I pull it back to maintenance or just below. In practice, that means my training day meals are heavier on rice, oats, and higher-carb foods I pick up doing a regular shop — nothing exotic, just your standard Lidl or Dunnes staples. Protein stays high throughout, typically north of 180g regardless of the day.
The one thing I've kept non-negotiable through both the cut and now the bulk is daily steps. I'm also doing weighted vest walking, which adds some low-level stimulus without the recovery cost of more training. Early on in the bulk I had a week where work got busy and the steps dropped off significantly. My digestion, sleep quality, and general energy were noticeably worse by the end of that week — enough to remind me why I'd made daily movement a non-negotiable in the first place rather than just a nice-to-have. That's not a dramatic transformation story, but it was a useful reminder.
I'm also keeping fluid intake at around 4.5 litres a day. I know that sounds like a lot, but when you're eating at a higher calorie level and training regularly, hydration affects everything from performance to how you feel hour to hour. I notice it when I fall short.
What I'd Tell Someone Considering This
If you're thinking about going through a proper cut-to-bulk transition, the most useful thing I can offer is this: slow down the transition. The impatience to get into a surplus after a long cut is understandable, but it's exactly where most people lose the gains they've made. A maintenance phase — even two or three weeks — before stepping calories up gives your metabolism and your hormones time to adjust. It's not time wasted.
Get bloodwork done before you make significant changes to your protocol. Baseline bloods — including a full metabolic panel, lipid panel, and hormones — give you something to compare against and help you understand whether changes you're feeling are reflected in the numbers. In Ireland, you can get a reasonable panel through your GP or through private testing services, and it's worth doing before rather than after.
Track your intake properly, at least for the first few weeks of the transition. Not obsessively, but accurately enough that you actually know what you're eating rather than guessing. Most people underestimate their calories on bulk days and overestimate on rest days — the opposite of what you want. Start at the lower end of your intended surplus, assess over two to three weeks, and adjust from there rather than jumping straight to your target numbers. And keep moving daily. Whatever your bulk looks like, the steps don't stop.
Summary
The cut-to-bulk transition is a process that rewards patience and structure more than most phases of training. Starting mid-80kg on a controlled cut at 2,100 calories and building methodically toward a lean bulk in the 2,500–2,600 range — with a maintenance phase in between, calorie cycling around training days, consistent daily steps, and 4.5 litres of fluid — has produced measurably better results than previous attempts where I rushed the process. None of this is complicated, but it does require being deliberate about it rather than just eating more and hoping for the best. If you want to explore the free tools I use to support nutrition tracking and planning, you can find them at irishpeptides.ie/free-tools.