The Ideal A1C in Diabetes: Why the Recommendation Might Be Wrong
A recent New York Times article has generated controversy by suggesting that older people with diabetes don't need to strictly control their blood glucose levels. This recommendation, although endorsed by certain medical societies, might be exposing millions of people to unnecessary risk of diabetic complications. Let's critically analyze these guidelines and the available alternatives.
The Controversial Article and Its Claims
The article titled "Why Older People Might Not Need to Monitor Their Blood Sugar So Closely" suggests that:
- Intensive diabetes management offers fewer benefits as patients age
- It increases the risk of hypoglycemia (low blood sugar)
- Many people haven't received this message
The subtitle states: "Intensive diabetes management yields fewer benefits as patients age and increases the chances of hypoglycemia."
The Case Presented as an Example
The article begins by describing the case of Aurora Larson, a woman who experiences hypoglycemic episodes several times a year, apparently with increasing frequency. Both her endocrinologist and primary care physician have advised her to maintain her A1C above 7.0%.
What is Hypoglycemia and Why is it Concerning?
Hypoglycemia is defined as a blood glucose level below 70 mg/dL, although significant symptoms usually appear below 60 mg/dL. Associated risks include:
- Falls and bone fractures
- Cardiac arrhythmias
- Cognitive damage
- In extreme cases, loss of consciousness and death
These risks are real and should be taken seriously, especially in older people.
The Origin of the Recommendations: The ACCORD Study
These guidelines are primarily based on the 2008 ACCORD study, which used:
- Intensive insulin therapy
- Sulfonylureas (like glibenclamide)
- Another medication that was later withdrawn from the market due to adverse effects
The study found that very strict glucose control through these medications increased the risk of severe hypoglycemic episodes without offering proportional benefits in reducing complications.
The Fundamental Problem: The Strategy, Not the Goal
The real problem isn't seeking a normal A1C, but how we try to achieve it. Intensive pharmacological therapy presents inherent risks of hypoglycemia because:
- Injected insulin doesn't respond to natural metabolic signals
- Sulfonylureas force the pancreas to secrete insulin regardless of glucose levels
- These interventions lack the body's natural feedback mechanisms
The Forgotten Paradigm: Dietary Control of Diabetes
Surprisingly, the New York Times article mentions the word "diet" only once, without specifying what dietary approach might be effective. This omission is significant considering that:
- The low-carbohydrate diet is the most studied dietary intervention for diabetes control
- Millions of people have managed to normalize their A1C levels without medications or with minimal doses
- Scientific evidence for this approach continues to accumulate
Questions to ChatGPT: An Interesting Verification
If you ask ChatGPT what is the most studied diet for controlling and reversing diabetes, it will unequivocally answer: the low-carbohydrate or ketogenic diet.
The Two Paths to Control Diabetes
There are fundamentally two approaches to managing type 2 diabetes:
1. The Conventional Pharmacological Approach
- Mechanism: Aggressive use of medications to force normal glucose levels
- Risks: Frequent hypoglycemic episodes, side effects
- Result: The New York Times article suggests giving up and accepting elevated A1C levels
2. The Therapeutic Nutrition Approach
- Mechanism: Substantial reduction in carbohydrates to decrease insulin needs
- Advantages: Virtually eliminates the risk of hypoglycemia
- Result: Allows achieving normal A1C levels without the risks associated with intensive medication
Geriatric Societies' Recommendations: Crucial Context
The article mentions that the American Geriatric Society recommends an A1C target between 7.5% and 8% for older adults. It's important to understand that:
- This recommendation assumes the use of the conventional pharmacological model
- It's designed to balance the risks of medication-induced hypoglycemia with the risks of diabetic complications
- It does not consider the scenario of control through carbohydrate restriction
The Real Impact of Elevated A1C
Maintaining an A1C between 7.5% and 8% (as suggested by the article) implies accepting average glucose levels between 170-180 mg/dL, which significantly increases the risk of:
- Diabetic neuropathy (nerve damage)
- Retinopathy (vision problems)
- Nephropathy (kidney failure)
- Cardiovascular disease
- Poor healing
The critical question is: why accept these risks when there's an alternative?
Pharmacological De-intensification: A Misunderstood Concept
The article correctly mentions that "de-intensification" can involve:
- Stopping medications
- Reducing doses
- Switching to alternative medications
However, it fails to mention that the most effective de-intensification is the transition to a nutritional approach that naturally reduces the need for medications.
The Evidence-Based Alternative: Low-Carbohydrate Diet
For people with type 2 diabetes:
- A very low-carbohydrate diet can normalize glucose levels in days or weeks
- Most patients can reduce or completely eliminate their medications
- The risk of hypoglycemia becomes practically non-existent when not depending on medications
For people with type 1 diabetes:
- They can reduce their insulin needs by 50-80%
- They experience much less pronounced glucose fluctuations
- They achieve normal A1C with significantly lower risk of hypoglycemia
Media Bias and Its Consequences
The New York Times article represents a concerning pattern in diabetes communication:
- It presents a false dilemma: accept elevated A1C or risk severe hypoglycemia
- It completely ignores the transformative role of therapeutic nutrition
- It indirectly benefits the food and pharmaceutical industry
This type of media coverage perpetuates the paradigm of "diabetes as a progressive disease" when evidence shows that, for many, it is reversible or controllable without medications.
Practical Recommendations: What You Should Do
If you have diabetes or prediabetes:
-
Seriously consider a nutritional approach: Low-carbohydrate, ketogenic, or carnivore diet can transform your metabolism
-
Work with informed professionals: Seek doctors familiar with nutritional management of diabetes (there are increasingly more)
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Monitor your glucose levels: Continuous or frequent monitoring devices will give you invaluable information
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Adjust medications with supervision: As your glucose normalizes, you'll need to reduce doses to avoid hypoglycemia
-
Set ambitious but safe goals: An A1C below 5.7% is completely achievable without significant risks of hypoglycemia when using a nutritional approach
Conclusion: Reconsidering Standards of Care
The New York Times article, although well-intentioned, promotes a suboptimal standard of care based solely on the pharmacological paradigm. The real solution isn't giving up on elevated A1C levels, but adopting strategies that allow normalizing glucose without the inherent risks of intensive medication.
Age shouldn't be a sentence to inevitable diabetic complications. With the right approach, even older people can achieve excellent metabolic control and preserve their quality of life, regardless of what headlines suggest.