Sugar is the enemy, but so often fat and salt are demonized when in a proper diet these aren't unhealthy at all.
Medical cause and effect is a slippery thing. You can't argue from individual experiences because some people are lucky, or they live in a healthier environment or have a healthier lifestyle, or they're less susceptible to certain conditions because of genetics.
Salt and sugar won't kill you instantly. What they actually do is increase the statistical occurrence of common medical conditions across entire populations, in ways that aren't usually obvious until later in life.
You may be lucky. Or you may have undiagnosed high blood pressure and something bad will happen tomorrow. There's no way to be sure. But if you have an interest in longevity, dietary discretion is a wise choice.
I'd recommend you read Reddit's /r/keto, specially its side bar, and make sure you always meet water intake goals and take your electrolytes.
I've consistently lost weight on the diet, and consistently gained it back when I abandoned it because Doritos.
When they banned alum in flour, industry and customers did scream. Today we find it very normal that our flour not contain alum. Alum makes whiter bread and consumers wanted whiter bread, paralleling what Pepsi is saying today.
Atkins-style diets have their downsides. especially in regards to blood pressure. Eating paleo sounds great, but remember that few of our ancestors expected to live past 30.
Life expectancy in pre-modern eras may have been around 30-ish years, but that mostly reflects extremely high levels of infant mortality. If you could reach adulthood, you usually expected to die around 50-60.
Only at the beginning if you already had big, BIG troubles with blood pressure. The salt intake required might take you over the edge before your body adapts to ketosis. But only in those extreme situations and at the beginning; after keto adaptation you will excrete a huge amount of your salt intake rather than absorb it like you would otherwise.