Aaron Wilson is reporting the San Francisco 49ers worked out former Patriots and Jaguars defensive tackle Kyle Love. For those that missed it earlier this offseason, Love was diagnosed with Type-2 diabetes and lost upwards of 20 pounds (I don't know if the latter resulted in the diagnosis of the former). The Patriots released him and Pro Football Talk reported the release was because of his diabetes. If that was the case there were potential legal ramifications under the Americans with Disabilities Act, but Love elected not to pursue legal action.
Love played at defensive end next to Vince Wilfork in the Patriots 3-4. Coming out of college in 2010, Love stood 6'1 and weighed 315 pounds. That's a little heavier than Williams reportedly was during this current season, but right about the same height. So yes, the 49ers are in fact considering nose tackle options. Love played defensive end, but could potentially move inside the line if needed, while also being able to play some defensive tackle when the 49ers switch to their four-man fronts.
Of course, this is only a workout, so we'll have to wait and see what comes of it. The 49ers have limited defensive line depth right now, with only Demarcus Dobbs and Tony Jerod-Eddie available to back up Justin Smith, Ray McDonald and Glenn Dorsey. I don't know if Love will be the choice, but I would be surprised if they did not add somebody. Part of this may depend in part on how McDonald's ankle feels at practice today.