Hello Irna, thank you for asking to HealthReplies.com.
Let me introduce myself, Dr. Rio will answer your question.
Previously, I appreciated your efforts in caring for your parents. Some diseases experienced by your mother are very complex, even very close to say metabolic syndrome. In the treatment of several diseases that occur in your mother in addition to using drugs recommended by your doctor, diet or adjust your diet is one of the keys to successful therapy. But what is very important is to see a doctor regularly, and periodically to monitor the progress of the disease, evaluate treatment, and to prevent complications.
Responding to your first question actually is not allowed / stopped at all on some food. But the portion must be very limited or reduced. In gout, the point is to avoid foods that contain high purines which I might not mention one by one, you can read about in this article. In hypertension / high blood pressure reduce salt intake. At high cholesterol levels, reduce high-fat foods such as coconut milk, desert food, meat, milk, etc. If the level is high, ask for treatment from the doctor who treats your mother, and do regular control / check cholesterol levels for 3-4 months, while continuing to consume the drug to monitor the results of treatment. In rheumatic diseases / joint pain in your mother can occur due to gout arthritis / osteoarthritis so that the treatment will depend on the cause, on gout decrease gout, and on osteoarthritis is an inflammatory disease of the joints due to aging so that it cannot be treated, limiting the activity is enough. In weight loss, limit carbohydrate intake, and exercise. On rising stomach acid avoid foods that are too spicy, or sour, coffee drinks, alcohol, or acidic drinks. Apart from the type of food, drinks and eating patterns, and eating schedules must be regular. I can not describe one by one in more detail again, for today there are so many ketring healthy food services, which can be adjusted to the sufferer's disease. Nutritional needs, and the choice of types of food are very calculated, and appropriate so that if you have excess sustenance you can consider this advice, or you can consult a clinical nutritionist for your mother's daily diet & drink.
Responding to your second question, a side effect that must occur when there is joint pain in your mother is that the joint will feel more painful due to usage. So my suggestion is to relieve the pain experienced by your mother, and do exercise according to age, and walk, and yoga is a very appropriate choice, I think this kind of exercise will not overburden your mother's joints.
That's all my answer, thank you very much :)