>I wish I had the discipline to go with a full on Ketogenic
>diet, but I love eating apples from the Farmer's Market too
>much to give those up.

Apples are awesome. Peep this weight loss strategy of pre-loading an apple 15 minutes before a meal (out of the 4 conditions, whole apple was the best; reducing intake by 15%) -
https://www.ncbi.nlm.nih.gov/pubmed/19110020/

Another one on pre-loading-
https://www.ncbi.nlm.nih.gov/pubmed/28131006

There are others studies. Basically, high water content and low-energy density foods are best. The benefits of preloading are maximized when timed 30 to 120 minutes before a meal.

A low whole fruit intake is suboptimal. A low whole fruit AND low whole veggie intake is a huge mistake. If you do keto, make sure you regularly consume fermentable fiber (from veggies and/or prebiotic fiber supplements). A diverse, rich gut microbiome is crucial to health and wellness. Gut bacteria provide benefits for humans when they have food to eat (i.e., fermentable fiber). When gut bacteria don't have fiber to eat, they'll eat the gut's mucosal lining. When you lose that protective barrier, a lot of bad shit can happen.

Read this:
http://humanfoodproject.com/sorry-low-carbers-your-microbiome-is-just-not-that-into-you/

and this:
https://chriskresser.com/are-high-fat-diets-bad-for-the-microbiome/

Fruits/veggies and risk reduction of cardiovascular disease, hypertension, and stroke:
https://www.ncbi.nlm.nih.gov/pubmed/22684631/

Higher fruit intakes' association with a significant risk reduction of type 2 diabetes:
https://www.ncbi.nlm.nih.gov/pubmed/23990623

Moderate and high fruit intakes are superior to low/no conditions. If you have time, take a look-see at these:
https://www.ncbi.nlm.nih.gov/pubmed/21621801
https://www.ncbi.nlm.nih.gov/pubmed/18439712
https://www.ncbi.nlm.nih.gov/pubmed/16395633

Chasing optimal health, I'd try to eat multiple servings of fruit daily.