back ground: 5'9 130lbs
ever since i cut my carbs to before 45g per day I've been insatiably hungry. the odd part is that i also upped my calories though. before i was consuming about 2100 calories of lean meat and tons of vegetables. now I'm consuming about 2500-2600 calories of fattier meats, butter, evoo, and less vegetables but I'm always hungry. ill literally eat a big meal and be full but then an hour later I'm starving... my question is why this would happen. i though being in keto was supposed to suppress appetite?
You're hungry because you're malnourished. It might be insufficient glucose, it might be some other critical nutrient like vitamin C. Try adding some safe starches and supplementing micronutrients.
5'9" and 130? It may be that your body is sending the correct signals to eat more and put on a bit of mass. You weigh less than I do at 5'4", female, and 18% BF.
The other answers have quite a bit of merit, too- you might find you're better adapted after a few weeks in, or you might find that you need to fuel significant activity with more starches (I know I do!).
You could try waiting it out. Higher fat content meals don't work so well if you are eating constantly - that's a habit forced on us by carb reliance. It can take a bit of practise to learn to wait for your food to digest. It may also take some time to realise that being full of fibrous waterlogged plants doesn't actually equal satiety, and that you don't actually need to feel full to be fed when you eat more nutrient dense foods. Of course you can keep piling it on if it's available, but that only really works or makes sense if you have extended periods of time when food isn't available either. Either way, I can almost guarantee that the signal your stomach is sending an hour after eating a big meal is not hunger.
You need some carbs, up it a bit and cut back on the fat more. higher protein/carb, slightly less fat. i believe at a certain point you can be deficient in carbohydrates (only personal experience to back this up, but like Paul Jaminet said) and more fat does you no good. in fact it just makes you store that fat!
i remember biochemistry in medical school (i'm a first year med student, sorry for the typos i'm typing fast) where they mentioned that an intermediate needed for effective fat burning was from carbohydrate metabolism. in other words, insufficient carbs leads to inefficient fat burning a la ketosis.
High triglycerides on Paleo diet 4 Answers