[Oldgixxer]

I disagree that potatoes (especially sweet potatoes) are harmful for weight loss,as they are an excellent source of complex carbohydrates (starchy carb) and,utilized in a proper fashion are a beneficial and a great source of energy in a non-keto/non-Atkins type diet. Sweet potatoes are also relatively low on the glycemic index which can also be beneficial to diabetics.

1st hand experience:
When I was younger and competed in amateur bodybuilding my pre-contest diet consisted of 6 meals(525-530cals per meal) every 3 hours broken down as follows totaling approx 3000cals:
-50g protein(plain grilled chicken breast)..........250cals
-50-60 complex carbs(plain sweet potato)........200cals
-15g fibrous carbs(8oz plain steamed broccoli....80cals
Total fat for those 3000cals=25-30g

Being strict and not deviating,along with 45mins of cardio(stationary bike/treadmill) allowed me to achieve my goal of single digit bodyfat in 16weeks. Basically I started dieting at 220lbs and would reach my goal of 175lbs in 16weeks.

I still follow that type of nutrition and I'll be 54 this month and hover around 10% BF year round by maintaining and eating properly.
I felt I needed to include details in my original statement that potatoes are beneficial for weight loss if used properly