Could be interpreted as a well done invitation to LCHF! This little article may be a great resource for those loved ones who are on the fence about LCHF/keto but keen to fix their brainz!
"Try eating a “clean” diet for two to three weeks — that means cutting out all processed foods and sugar. See how you feel.
Then, slowly introduce foods back into your diet, one by one, and see how you feel."
You know how they’ll feel, and how they’ll want to regain the ketone powers, etc.
This article is from 2015. So much additional work from Harvard/McLean Hospital in the past five years from Dr. Chris Palmer. https://www.chrispalmermd.com
His research and bibliography is extensive: https://www.chrispalmermd.com/ketogenic-diet-research-bibliography/
Also over the past five years, simple short columns in Psychology Today by Dr. Georgia Ede are great introductions to nutritional psychiatry. https://www.psychologytoday.com/us/blog/diagnosis-diet/201712/top-ten-tips-healthier-brain-in-2018 Her research at: https://www.diagnosisdiet.com/full-article/ketogenic-resources-for-mental-health
I was hoping for something positive about KETO and mental health but Harvard Medical seems pretty down on KETO overall. My son’s mother told her doctor she was doing KETO and he didn’t even know much about it! He got on the computer and went right to Harvard Medical and dredged up this article from 2019 and told her KETO was a dangerous way to eat. Well of course in the last year her health has improved drastically and she’s lost about 30 lbs. she feels better than she has in years and she’s hard core 4 life now. 
Keto risks
A ketogenic diet has numerous risks. Top of the list: it’s high in saturated fat. McManus recommends that you keep saturated fats to no more than 7% of your daily calories because of the link to heart disease. And indeed, the keto diet is associated with an increase in “bad” LDL cholesterol, which is also linked to heart disease.
Other potential keto risks include these:
Nutrient deficiency. “If you’re not eating a wide variety of vegetables, fruits, and grains, you may be at risk for deficiencies in micronutrients, including selenium, magnesium, phosphorus, and vitamins B and C,” McManus says.
Liver problems. With so much fat to metabolize, the diet could make any existing liver conditions worse.
Kidney problems. The kidneys help metabolize protein, and McManus says the keto diet may overload them. (The current recommended intake for protein averages 46 grams per day for women, and 56 grams for men).
Constipation. The keto diet is low in fibrous foods like grains and legumes.
Fuzzy thinking and mood swings. “The brain needs sugar from healthy carbohydrates to function. Low-carb diets may cause confusion and irritability,” McManus says.
Those risks add up — so make sure that you talk to a doctor and a registered dietitian before ever attempting a ketogenic diet.
I do believe that people can drastically improve just by cutting sugar and junk out though even if they don’t approach ketosis.
It’s a fantastic resource for certain loved ones - has nothing to do with my opinion of Harvard’s general B.S., which I’ve had a longtime critique of in various ways.
Eva Selhub MD’s article is great for providing people with “bridge” info - and encouraging their courageous efforts to “see how they feel”. After all, HARVARD told them too, lolol. I also really like the female minority MD resource for my friends who are women of color.
Give this article to some folks, and they’ll feel braver to dip their toes into the wilds of lower carb - and for the few who venture further into HH and get confused, well, that can always be set straight at some point, because HH is obviously a mess. I take what works and leave the other stuff behind. 
Not to mention the fact that bacon is addictive! 
