Eating Enough Calories on Foundayo: Why Under-Eating Backfires
For a lot of people starting Foundayo (orforglipron), the first surprise is how quiet hunger becomes. The second, according to accounts shared in public forums, is how easily that quiet slips into not eating enough, and what some of them say follows when it does.
The idea in the headline is one many of these writers arrive at themselves, though not all of them do, and several openly wonder about the explanation. The accounts below are personal experiences, not evidence of how often anything happens or of what causes it.
What follows is how it plays out in their own words: when eating becomes a task, what a missed meal feels like, the hunger that comes back late, the explanations people reach for, and what counts as enough.
When Eating Becomes a Task
Many people come to Foundayo expecting to wrestle with hunger, so the opposite problem catches them off guard. One person on the 2.5 mg dose had assumed stories about struggling to eat enough were exaggerated, until it happened to them.
"I thought people were being dramatic when they said that it was a struggle to get in enough calories. I have never had that issue in my life, which is why I am overweight. But the last few days, I have no appetite. I feel full after a smoothie in the morning and all day. No food even sounds appetizing."
– SweetAwareness0504
That quiet is not always unwelcome. Early in treatment, a forgotten meal can feel like the first break from a lifetime of struggling with food.
"noticeable appetite suppression from day, one. Earlier in the week it was more about I would forget to eat which if you’re a person who struggled with their weight their whole life, you can completely appreciate how beautiful that is so I am eating less."
– Radiant-Appeal8643
Over a few weeks, though, several people describe a shift from not noticing food to having to push it in, and for one person on the lowest dose the effort has a clear purpose.
"I'm three or four weeks in at 0.8 and have to force down enough calories to not be zapped of energy."
– jd64k
That worry about energy is where many of the accounts turn next.
What Happens When a Meal Gets Missed
Missing food does not always announce itself as hunger. In these accounts it is more often a slump, a muddled head or a physical wobble that people only later link to the clock. For one person, the body keeps its own timetable even after the appetite has gone.
"The only thing i have found is that although i aren't physically hungry i still have a light headed feeling i always got in between meals - Its as though my brain is telling me I'm hungry but my body is saying I'm not - very strange!!"
– MsFlump
For others the signal goes unnoticed until it is loud, and work is one way meals slip away without anyone deciding to skip them.
"I end up getting hyper focused on work during my day and just forget until I’m like I feel terrible!!!"
– wildly_domestic
Some people have mapped their own pattern closely enough to predict it, describing how the symptoms shift with how the day's eating goes.
"For me, if I nail my eating schedule with the right foods and the right amounts (enough but not too much) then I have no symptoms. If I don’t do it right like I eat too much at one sitting, then I have nasty heartburn at night and nausea during the day. If I don’t eat enough during the day I get migraines and heartburn."
– EmotionalTurn1
The bluntest version of the lesson comes in a reply addressed to someone just starting out.
"Don’t under-eat. I had to really really watch that. My blood sugar tanked a few times and it was not fun. […]"
– shehulud
What comes through is less drama than a day gone flat, and the next day often seems to behave differently.
Hunger That Comes Back Late
A quiet appetite can be uneven across the day. Several people describe mornings with almost no interest in food, followed by hunger that arrives late and with some force. For one person on the starting dose, that evening hunger had a particular flavour.
"I met with the nutritionist yesterday and told her my appetite is very muted except just before bed, when I want all the sugar I can find (on 0.8). […]"
– JGonzoX3
Eighteen days into treatment, another person describes the same shape: nothing wanted until early afternoon, and a different story late in the day.
"I have no desire to eat anything much before 1:30 ish, and I'm definitely eating less, but it's nearly 11 and I am starving!! Having a protein shake."
– loveshoes1
A reply in that same thread links the swings to missed meals in the early days.
"When I started this medicine, I remember skipping meals and I would feel a LOT of hunger the next day. Chances of overeating are higher when we feel like that !"
– Smart-Toe-8752
That link between one day's gap and the next day's hunger is that poster's own observation, and other people looking for the cause of how they feel reach for different explanations.
Looking for the Cause
Not every low point comes with a clear culprit, and what stands out is how often people raise food and then question it. Some suspect they are simply eating less than before.
"My sleep is still great, but I have noticed that by 2 pm I'm exhausted. I think that might be that Im not eating as much as I was before."
– Pretty_Confidence377
Others have already ruled food out, tracking what they eat closely enough to be sure before they ask the question at all.
"I am eating enough (I track my food intake on a food scale the past four years), so it’s not due to eating too little."
– Number_Ten10
Someone else covers the same ground, checking that eating enough comes first, and ends with an open question about what kind of fatigue it is.
"I’m also eating enough and getting protein, so I don’t think this is just from barely eating. I find myself more drawn to sugar as well? So this could be a crash situation."
– Diligent-Situation-8
Between suspecting food and ruling it out, what people do about it is mostly mundane: reminders, small plates and snacks eaten without being craved.
Timers, Snacks and Small Meals
For some, the response is mechanical, built around a timer rather than around hunger.
"I no longer feel like eating is optional. I set a timer for every two hours to remind myself to eat something small and refill my water."
– lookmanolurker
Others lean on food rather than clocks, choosing something small and easy even when nothing sounds appealing.
"I noticed if I don’t eat SOMETHING it makes the nausea worse so I try to at least eat a protein snack even if I’m not hungry (like around meal times). So like hummus and pretzels or Greek yogurt."
– KnittingAlpacas
Routine runs through all of these accounts. A third person, three weeks in and still adjusting, reports a small milestone that sounds almost surprising.
"My biggest lesson has been don’t skip meals, just eat smaller portions. I had a few rough days with nausea, bloating, fullness and constipation, but I’m learning what foods and portion sizes work for me. I’m also making hydration a priority. This week has been much better. I’m eating three smaller meals, tracking everything in MyFitnessPal, and this morning my stomach actually growled from hunger for the first time in a while!"
– raeowens925
Whether small, regular meals have anything to do with how people feel is something none of the writers can establish, and not everyone describes needing them.
What Counts as Enough?
How much counts as enough is not the same for everyone, and not everyone who eats little reports trouble. One person in their late fifties describes feeling great in the first week while still making a point of eating.
"i dont even need to eat lol. I just had to make myself eat some lunch because its 3 o'clock. Im making a point of eating protein as much as possible if im eating so little."
– crowber
Elsewhere, enough is a number, held against years of careful tracking, and the appetite effect is described as still needing willpower.
"The appetite suppression was there, but also required a decent amount of willpower but was able to maintain around 2300-2400 calories for me is a slight calorie deficit of around 2-300 as I meticulously have tracked over the past year food in, out, expenditure and weight and know my maintenance sits around 26-2700."
– EducationalTune870
For someone who has switched to Foundayo for maintenance, eating enough is the goal rather than the obstacle.
"Feeling good, zero hunger but can eat enough so I’m getting 2500kcals"
– SuperbDingo66
What Does Medino's Pharmacist Think?
"What stands out is how many people describe the same discovery: that a quiet appetite and a proper meal are not always the same thing. Some work it out within days, others over weeks, and some feel fine throughout. These are individual accounts, and every person's circumstances differ."
– Alessandro Grenci, Pharmacist at Medino
A Quiet Appetite Is Not the Whole Story
Read together, these threads describe a stage of treatment many people did not expect to have: one where hunger is no longer a reliable guide, and the day has to be assembled some other way. For some that means timers and snacks; for others, little more than noticing.
What the accounts do not settle is cause. Some tie the slump or the late hunger to what they ate, others look elsewhere, and a few feel well on very little. What they share is surprise at how different the early weeks of eating less can be from what they imagined.
