Your title is "Healthy Eating", hence why I feel it is ok to have a view. I am Type 2 but food ultimately affects us all in general in similar ways. If you eat in a manner that non-diabetics eat you are likely to get the results they get, both physically and mentally; at this stage using America as a proxy, most of the non diabetics are metabolically sick.
I eat meat / fish everyday, dairy, berries, nuts and low carb vegetables. This is essentially the Dr Richard Bernstein method many Type 1's use; in a trial they (Type 1 Grit) averaged out at HbA1c's of 5.7% with flat glucose graphs. Alternative ways of eating by recent posts on this forum endorse spikes above 9 mmol, covered by insulin and variances in glucose up to 4 mmol - it is my view this is not healthy.
Dr Ian Lake, Dr Troy Stapleton Dr Keith Runyan, Dr Sheila Cook, Dr Jake Kushner, Andrew Koutinik, , Jessica Turton (dietician), RD Dikeman (Phd) all provide real world accounts of the low carb / keto method of eating as applicable to Type 1's (and which in my view can "work" for anyone). David Dikeman is a young man who presents a compelling anecdote for this way of eating.