Well. You can easily make soylent low fat yourself. Just add less canola oil and add more maltodextrine.
But some people will doubt if this is healthy. The less fat and the more carbs, the less stable your blood sugar will be.
You could also replace some fat with protein. But soylent already has quite some protein.
I don’t think that soylent should really try to push us in any extreme directions. Like very low fat, or low carb or low protein whatever. I think they should make it easier for us to decide for ourself with direction we want to go.
I mean, you come with your experts that tell that we need to eat less fat. Well if we need to eat less fat, we need to replace those calories with carbs or protein. I could point you to some other experts, that claim that carbs are causing you all kind of problems. And that we all should go on some mediterean kind of diet with 30-40% of the calories coming from fat. And I could even find for you some experts that claim that we should go to 60-80% of our calories coming from fat and those calories should come saturated fats such as coconut oil, ghee and butter.
I think soylent is very smart to not going in the extremes. I mean there are just too many different extreme opinions.