Reducing Dietary Acid With Food Versus Oral Alkali in People With Chronic Kidney Disease (ReDACKD)

Inclusion Criteria: * Participant is willing and able to give informed consent for participation in the trial * Male or Female, aged 18 years or above * Participants who have an eGFR between 15 and 40 ml/min/1.73m2 * Two consecutive measurements of serum bicarbonate of 14 to 22 mEq/L * Systolic and diastolic blood pressure \<160/100 mmHg * Serum potassium \<5.3 mmol/L * Hemoglobin A1c below ≤ 11% * Are registered in the nephrology clinic in Winnipeg or Halifax * Participants are able to communicate in English and provide written informed consent Exclusion Criteria: * Anuria, dialysis or acute kidney injury/acute kidney failure in the 3 months prior to screening * Chronic obstructive pulmonary disease that requires the participant to be on oxygen * New York Heart Association Class 3-4 Heart failure symptoms or heart, liver or renal transplant * A myocardial infarction or stroke within the last 6 months * Unable to consume study treatments or control, such as swallowing or GI issues * Participants who have participated in another research trial involving an investigational product in the past 12 weeks * Currently on potassium binding therapy * Female participant who is pregnant or on lactating