Some protein powders are heavy in carbohydrates and calories, which can induce weight gain, explains Melissa Nieves, RD of Kemtai, a virtual personal trainer app. This supplement's sugar and protein both add calories.

You may gain weight

Most healthy people can ingest 20-30 grammes of protein per day in a shake.

You may be replacing other nutrients

Some powders containing heavy metals can cause health concerns through titration.

You may be consuming toxins

Protein powders often contain milk protein. Lactose sensitivity can cause discomfort, intestinal upset, and mineral malabsorption, explains Kessler.

You may be aggravating a food allergy.

Protein can be overconsumed. Those with kidney problems should avoid eating too much protein because their kidneys can't handle it.

Your kidneys may suffer

Too much protein can cause kidney stones and bone fractures by reducing calcium retention.

Your bone health may suffer

Many protein powders contain flavourings, sugar, and chemicals to improve taste.

You may get a sugar high

If you have food allergies/intolerances (milk, lactose, soy, egg), read the protein powder's label.

You could eat an allergy

Protein powders are safe but not closely monitored. Some producers 'protein spike' their products to fool protein tests.

You may not receive enough protein

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