Most health insurance policies will cover nutrition counseling through a dietician though under what circumstances can vary significantly from one insurance carrier to another and from policy to policy. Remember, many larger employers are self-insured which gives them much greater say in what is covered under their plans than groups using fully insured health insurance plans. The bottom line is that you need to look at your policy's summary of benefits and possibly contact your insurance carrier to verify what your coverage would be, for what conditions would it apply, and for how many visits or for what length of time.
Generally a medical diagnosis for a condition such as diabetes, high cholesterol and/or high blood pressure or anemia (among others) would be situations where the services of a dietician could be viewed as medically necessary. Getting sports dietary nutrition counseling so you can become a marathon runner for example would not meet that criteria and is highly unlikely to be covered under your health insurance.
Generally a medical diagnosis for a condition such as diabetes, high cholesterol and/or high blood pressure or anemia (among others) would be situations where the services of a dietician could be viewed as medically necessary. Getting sports dietary nutrition counseling so you can become a marathon runner for example would not meet that criteria and is highly unlikely to be covered under your health insurance.